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Oxonickelates

{{Short description|Ion}}

{{for|the most common nickel oxide|Nickel(II) oxide}}

Nickel forms a series of mixed oxide compounds which are commonly called nickelates.

A nickelate is an anion containing nickel or a salt containing a nickelate anion, or a double compound containing nickel bound to oxygen and other elements. Nickel can be in different or even mixed oxidation states, ranging from +1, +2, +3 to +4. The anions can contain a single nickel ion, or multiple to form a cluster ion. The solid mixed oxide compounds are often ceramics, but can also be metallic. They have a variety of electrical and magnetic properties. Rare-earth elements form a range of perovskite nickelates, in which the properties vary systematically as the rare-earth element changes. Fine tuning of properties is achievable with mixtures of elements, applying stress or pressure, or varying the physical form.

Inorganic chemists call many compounds that contain nickel centred anions "nickelates". These include the chloronickelates, fluoronickelates, tetrabromonickelates, tetraiodonickelates, cyanonickelates, nitronickelates and other nickel-organic acid complexes such as oxalatonickelates.

Alkali nickelates

The lithium nickelates are of interest to researchers as cathodes in lithium cells, as these substance can hold a variable amount of lithium, with the nickel varying in oxidation state.

Rare-earth nickelates

Rare-earth nickelates were first made by Demazeau et al. in 1971, by heating a mixture of oxides under high pressure oxygen, or potassium perchlorate.{{cite journal |last1=Demazeau |first1=Gérard |last2=Marbeuf |first2=Alain |last3=Pouchard |first3=Michel |last4=Hagenmuller |first4=Paul |date=November 1971 |title=Sur une série de composés oxygènes du nickel trivalent derivés de la perovskite |journal=Journal of Solid State Chemistry |language=fr |volume=3 |issue=4 |pages=582–589 |bibcode=1971JSSCh...3..582D |doi=10.1016/0022-4596(71)90105-8}} For two decades after that these nickelates received very little attention.{{cite journal |last1=Alonso |first1=J. A. |last2=Martínez Lope |first2=M. J. |last3=Casais |first3=M. T. |last4=Martínez |first4=J. L. |last5=Demazeau |first5=G. |last6=Largeteau |first6=A. |last7=García Muñoz |first7=J. L. |last8=Muñoz |first8=A. |last9=Fernández-Díaz |first9=M. T. |date=September 1999 |title=High-Pressure Preparation, Crystal Structure, Magnetic Properties, and Phase Transitions in GdNiO3 and DyNiO3 Perovskites |journal=Chemistry of Materials |volume=11 |issue=9 |pages=2463–2469 |doi=10.1021/cm991033k}} Many rare-earth nickelates have the Ruddlesden–Popper phase structure.

Rare-earth nickelates with nickel in a +1 oxidation state have an electronic configuration to same as for cuprates and so are of interest to high-temperature superconductor researchers.{{cite journal |last1=Anisimov |first1=V. I. |last2=Bukhvalov |first2=D. |last3=Rice |first3=T. M. |date=15 March 1999 |title=Electronic structure of possible nickelate analogs to the cuprates |journal=Physical Review B |volume=59 |issue=12 |pages=7901–7906 |bibcode=1999PhRvB..59.7901A |doi=10.1103/PhysRevB.59.7901}}{{cite journal |last1=Li |first1=Danfeng |last2=Lee |first2=Kyuho |last3=Wang |first3=Bai Yang |last4=Osada |first4=Motoki |last5=Crossley |first5=Samuel |last6=Lee |first6=Hye Ryoung |last7=Cui |first7=Yi |last8=Hikita |first8=Yasuyuki |last9=Hwang |first9=Harold Y. |title=Superconductivity in an infinite-layer nickelate |journal=Nature |date=29 August 2019 |volume=572 |issue=7771 |pages=624–627 |doi=10.1038/s41586-019-1496-5 |bibcode=2019Natur.572..624L |pmid=31462797 |osti=1562463 }}{{cite journal |last1=Botana |first1=A. S. |last2=Bernardini |first2=F. |last3=Cano |first3=A. |year=2021 |title=Nickelate superconductors: an ongoing dialog between theory and experiments |journal=Journal of Experimental and Theoretical Physics |volume=132 |issue=4 |pages=618–627 |arxiv=2012.02764 |bibcode=2021JETP..132..618B |doi=10.1134/S1063776121040026 }} Other rare-earth nickelates can function as fuel cell catalysts. The ability to switch between an insulating and a conducting state in some of these materials is of interest in the development of new transistors, that have higher on to off current ratios.{{cite journal|last1=Notman|first1=Nina|title=Edging towards silicon-free transistors|journal=Materials Today|date=December 2014|volume=17|issue=10|pages=473|doi=10.1016/j.mattod.2014.10.034|doi-access=free}}

List of oxides

class="wikitable"

!formula

!name

!other names

!structure

!Remarks

!references

LiNiO2

|lithium nickelate

|

|rhombohedral a = 2.88 Å, c = 14.2 Å, density = 4.78 / 4.81

|

|{{cite journal|last1=Dyer|first1=Lawrence D.|last2=Borie|first2=Bernard S.|last3=Smith|first3=G. Pedro|title=Alkali Metal-Nickel Oxides of the Type MNiO2|journal=Journal of the American Chemical Society|date=March 1954|volume=76|issue=6|pages=1499–1503|doi=10.1021/ja01635a012|bibcode=1954JAChS..76.1499D }}

Li2NiO3

|

|

|monoclinic C2/m a = 4.898 Å, b = 8.449 Å, c = 4.9692 Å, β = 109.02°, V = 194.60 Å3

|Nickel in +4 state

|{{cite journal|last1=Shinova|first1=Elitza|last2=Zhecheva|first2=Ekaterina|last3=Stoyanova|first3=Radostina|last4=Bromiley|first4=Geoffrey D.|title=High-pressure synthesis of solid solutions between trigonal LiNiO2 and monoclinic Li[Li1/3Ni2/3]O2|journal=Journal of Solid State Chemistry|date=May 2005|volume=178|issue=5|pages=1661–1669|doi=10.1016/j.jssc.2005.03.007|bibcode=2005JSSCh.178.1661S}}

NaNiO2

|sodium nickelate

|

|monoclinic a = 5.33 Å, b = 2.86 Å, c = 5.59 Å, β = 110°30′, Z = 2, density = 4.74; over 220 °C: rhombohedral a = 2.96 Å, b = 15.77 Å

|Carbon dissolved in the molten salt can precipitate diamond.

|{{cite journal|last1=Komath|first1=M.|last2=Cherian|first2=K. A.|last3=Kulkarni|first3=S. K.|last4=Ray|first4=A.|title=The role of sodium nickelate in the metastable recrystallization of diamond|journal=Diamond and Related Materials|date=1994|volume=4|issue=1|pages=20–25|bibcode=1994DRM.....4...20K|doi=10.1016/0925-9635(94)90064-7}}

KNiO2

|potassium nickelate

|

|

|

|{{cite journal|last1=Hofmann|first1=K. A.|last2=Hiendlmaier|first2=H.|title=Sauerstoffübertragung durch brennendes Kalium|journal=Berichte der Deutschen Chemischen Gesellschaft|date=July 1906|volume=39|issue=3|pages=3184–3187|doi=10.1002/cber.190603903136|url=https://zenodo.org/record/1426184}}

SrTiNiO3{{dubious|date=April 2016}}

|strontium titanate nickelate

|STN

|

|

|{{cite journal|last1=Lee|first1=Ke-Jing|last2=Wang|first2=Li-Wen|last3=Chiang|first3=Te-Kung|last4=Wang|first4=Yeong-Her|title=Effects of Electrodes on the Switching Behavior of Strontium Titanate Nickelate Resistive Random Access Memory|journal=Materials|date=26 October 2015|volume=8|issue=10|pages=7191–7198|doi=10.3390/ma8105374|pmid=28793630|bibcode=2015Mate....8.7191L|pmc=5455395|doi-access=free}}

YNiO3

|yttrium nickelate

|

|monoclinic P21/n; orthorhombic a = 5.516 Å, b = 7.419 Å, c = 5.178 Å, V = 211.9 Å3, Z = 4, density = 6.13

|insulator changes to metal under pressure

|{{cite journal|last1=García Muñoz|first1=J. L.|last2=Amboage|first2=M.|last3=Hanfland|first3=M.|last4=Alonso|first4=J. A.|last5=Martínez Lope|first5=M. J.|last6=Mortimer|first6=R.|title=Pressure-induced melting of charge-order in the self-doped mott insulator yttrium nickelate|journal=High Pressure Research|date=March 2003|volume=23|issue=1–2|pages=171–175|doi=10.1080/0895795031000114430|bibcode=2003HPR....23..171G }}{{cite journal|last1=Yamamoto|first1=Susumu|last2=Fujiwara|first2=Takeo|title=Symmetry consideration and eg bands in NdNiO3 and YNiO3|journal=Journal of Physics and Chemistry of Solids|date=June 2002|volume=63|issue=6–8|pages=1347–1351|doi=10.1016/S0022-3697(02)00085-9|bibcode=2002JPCS...63.1347Y|arxiv=cond-mat/0110431 }}

Y2BaNiO5

|chain nickelate

|

|Orthorhombic Immm, a = 3.7589, b = 5.7604, c = 11.3311

|

|{{cite journal|last1=Alonso|first1=J. A.|last2=Rasines|first2=I.|last3=Rodriguez-Carvajal|first3=J.|last4=Torrance|first4=J. B.|title=Hole and Electron Doping of R2BaNiO5 (R = Rare Earths)|journal=Journal of Solid State Chemistry|date=April 1994|volume=109|issue=2|pages=231–240|doi=10.1006/jssc.1994.1098|bibcode=1994JSSCh.109..231A}}

2H-AgNiO2

|

|

|hexagonal P63/mmc, a = 2.93653 Å, b = 2.93653 Å, c = 12.2369 Å, V = 91.384 Å3, Z = 2, density = 7.216 g/cm3

|Ni in +3 state

|{{cite journal|last1=Sörgel|first1=Timo|last2=Jansen|first2=Martin|title=Eine neue, hexagonale Modifikation von AgNiO2|trans-title=A New Hexagonal Modification of AgNiO2|journal=Zeitschrift für Anorganische und Allgemeine Chemie|date=November 2005|volume=631|issue=15|pages=2970–2972|language=de|doi=10.1002/zaac.200500295}}

3R-AgNiO2

|

|

|trigonal R{{overline|3}}2/m, a = 2.9390 Å, c = 18.3700 Å

|Ni in +3 state

|

Ag2NiO2

|silveroxonickelate

|

|trigonal R{{overline|3}}2/m, a = 2.926 Å, c = 24.0888 Å

|lustrous black solid, stable in air; Ni3+ and subvalent Ag2+

|{{cite journal|last1=Schreyer|first1=Martin|last2=Jansen|first2=Martin|title=Synthesis and Characterization of Ag2NiO2 Showing an Uncommon Charge Distribution|journal=Angewandte Chemie|date=15 February 2002|volume=114|issue=4|pages=665–668|doi=10.1002/1521-3757(20020215)114:4<665::AID-ANGE665>3.0.CO;2-Z|bibcode=2002AngCh.114..665S }}

Ag3Ni2O4

|

|

|hexagonal P63/mmc, a = 2.9331 Å, b = 2.9331 Å, c = 28.31 Å, V = 210.9 Å3, Z = 2, density = 7.951 g/cm3

|electric conductor

|{{cite journal|last1=Sörgel|first1=Timo|last2=Jansen|first2=Martin|title=Ag3Ni2O4—A new stage-2 intercalation compound of 2H–AgNiO2 and physical properties of 2H–AgNiO2 above ambient temperature|journal=Journal of Solid State Chemistry|date=January 2007|volume=180|issue=1|pages=8–15|doi=10.1016/j.jssc.2006.08.033 |bibcode=2007JSSCh.180....8S}}

BaNiO2

|

|

|orthorhombic a = 5.73 Å, b = 9.2 Å, c = 4.73 Å, V = 249 Å3, Z = 4

|black

|

BaNiO3

|

|

|hexagonal a = 5.580 Å, c = 4.832 Å, V = 130.4 Å3, Z = 2

|black powder dec 730 °C N-type semiconductor; decompose in acid

|{{cite journal|last1=Lander|first1=J. J.|last2=Wooten|first2=L. A.|title=Barium-Nickel Oxides with Tri- and Tetravalent Nickel|journal=Journal of the American Chemical Society|date=June 1951|volume=73|issue=6|pages=2452–2454|doi=10.1021/ja01150a013|bibcode=1951JAChS..73.2452L }}

Ba2Ni2O5

|

|

|hexagonal a = 5.72, c = 4.30, density = 6.4

|black needles melt 1200 °C

|{{cite journal|last1=Lander|first1=J. J.|title=The crystal structures of NiO·3BaO, NiO·BaO, BaNiO3 and intermediate phases with composition near Ba2Ni2O5; with a note on NiO|journal=Acta Crystallographica|date=1 March 1951|volume=4|issue=2|pages=148–156|doi=10.1107/S0365110X51000441}}

LaNiO2

|lanthanum nickelite

|

|a = 3.959, c = 3.375

|Ni in +1 state

|{{cite journal|last1=Crespin|first1=M.|last2=Isnard|first2=O.|last3=Dubois|first3=F.|last4=Choisnet|first4=J.|last5=Odier|first5=P.|title=LaNiO2: Synthesis and structural characterization|journal=Journal of Solid State Chemistry|date=April 2005|volume=178|issue=4|pages=1326–1334|doi=10.1016/j.jssc.2005.01.023|bibcode=2005JSSCh.178.1326C}}

LaNiO3

|lanthanum nickelate

|

| a = 5.4827 Å, b = 5.4827 Å, c = 3.2726 Å, γ = 120°, V = 345.5, Z = 6, density = 7.08

|metallic, no insulating transition polar metal

|{{cite web|title=Atom Work Inorganic Material Database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=17008&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4295017684&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+La&need_more_type=prototype_number&material_id=4295279810&page=1&isConditionValueError=false|accessdate=23 April 2016}}

La2NiO4

|

|LN

|tetragonal a = 3.86 Å, b = 3.86 Å, c = 12.67 Å, V = 188.8 Å3, Z = 2, density = 7.05

|

|{{cite web|title=La2NiO4 in K2NiF4 structure|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=16575&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4295032442&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+La&need_more_type=prototype_number&material_id=4295525150&page=1&isConditionValueError=false|accessdate=23 April 2016}}

La3Ni2O6

|

|

|tetragonal a = 3.968 Å, c = 19.32 Å

|

|{{cite journal|last1=Poltavets|first1=Viktor V.|last2=Lokshin|first2=Konstantin A.|last3=Dikmen|first3=Sibel|last4=Croft|first4=Mark|last5=Egami|first5=Takeshi|last6=Greenblatt|first6=Martha|title=La2Ni2O6: A New Double T′-type Nickelate with Infinite Ni1+/2+O2 Layers|journal=Journal of the American Chemical Society|date=July 2006|volume=128|issue=28|pages=9050–9051|doi=10.1021/ja063031o|pmid=16834375|bibcode=2006JAChS.128.9050P }}

La3Ni2O7

|

|

|a = 5.3961 Å, b = 5.4498 Å, c = 20.522 Å, V = 603.5, Z = 4, density = 7.1

|superconductor under pressure Tc=80K

|{{cite web|title=Details of Selected Material Inorganic Materials Database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=39897&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4295028865&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+La&need_more_type=prototype_number&material_id=4296371207&page=1&isConditionValueError=false|accessdate=23 April 2016}}{{cite journal |last1=Sun |first1=Hualei |last2=Huo |first2=Mengwu |last3=Hu |first3=Xunwu |last4=Li |first4=Jingyuan |last5=Liu |first5=Zengjia |last6=Han |first6=Yifeng |last7=Tang |first7=Lingyun |last8=Mao |first8=Zhongquan |last9=Yang |first9=Pengtao |last10=Wang |first10=Bosen |last11=Cheng |first11=Jinguang |last12=Yao |first12=Dao-Xin |last13=Zhang |first13=Guang-Ming |last14=Wang |first14=Meng |title=Signatures of superconductivity near 80 K in a nickelate under high pressure |journal=Nature |date=21 September 2023 |volume=621 |issue=7979 |pages=493–498 |doi=10.1038/s41586-023-06408-7 |pmid=37437603 |arxiv=2305.09586 |bibcode=2023Natur.621..493S }}

La4Ni3O8

|

|

|

|antiferromagnetic below 105 K, mixed valence I and II

|{{cite journal |last1=Poltavets |first1=Viktor V. |last2=Lokshin |first2=Konstantin A. |last3=Nevidomskyy |first3=Andriy H. |last4=Croft |first4=Mark |last5=Tyson |first5=Trevor A. |last6=Hadermann |first6=Joke |last7=Van Tendeloo |first7=Gustaaf |last8=Egami |first8=Takeshi |last9=Kotliar |first9=Gabriel |last10=ApRoberts-Warren |first10=Nicholas |last11=Dioguardi |first11=Adam P. |last12=Curro |first12=Nicholas J. |last13=Greenblatt |first13=Martha |title=Bulk Magnetic Order in a Two-Dimensional Ni1+ / Ni2+ (d9 / d8) Nickelate, Isoelectronic with Superconducting Cuprates |journal=Physical Review Letters |date=19 May 2010 |volume=104 |issue=20 |page=206403 |doi=10.1103/PhysRevLett.104.206403 |pmid=20867044 |bibcode=2010PhRvL.104t6403P |arxiv=1003.3276 }}

La4Ni3O10

|

|

|

|

|

La2−xSrxNiO4

|

|LSN

|a varies from 3.86 to 3.81 as x changes from 0 to 0.5, then ≈ 3.81; c ≈ 12.7 for x ≤ 0.8, the it falls to 12.4 at x = 1.2

|polarization-specific metal

|{{cite journal|last1=Sreedhar|first1=K.|last2=Rao|first2=C. N. R.|title=Electrical and magnetic properties of La2−xSrxNiO4: A tentative phase diagram|journal=Materials Research Bulletin|date=October 1990|volume=25|issue=10|pages=1235–1242|doi=10.1016/0025-5408(90)90079-H}}

CeNiO3

|cerium nickelate

|

|

|decomposes 1984 °C

|{{Cite journal|last1=Fratello|first1=V.J.|last2=Berkstresser|first2=G.W.|last3=Brandle|first3=C.D.|last4=Ven Graitis|first4=A.J.|date=September 1996|title=Nickel containing perovskites|journal=Journal of Crystal Growth|language=en|volume=166|issue=1–4|pages=878–882|doi=10.1016/0022-0248(95)00474-2|bibcode=1996JCrGr.166..878F }}

PrNiO2

|

|

|

|

|

PrNiO3

|

|

| perovskite

|metallic insulator transition=130K

|

Pr4Ni3O8

|

|

|

|

|

Pr2BaNiO5

|chain nickelate

|

|Orthorhombic

|

|

La2PrNi2O7

|

|

|orthorhombic

|

|{{cite journal |last1=Wang |first1=Ningning |last2=Wang |first2=Gang |last3=Shen |first3=Xiaoling |last4=Hou |first4=Jun |last5=Luo |first5=Jun |last6=Ma |first6=Xiaoping |last7=Yang |first7=Huaixin |last8=Shi |first8=Lifen |last9=Dou |first9=Jie |last10=Feng |first10=Jie |last11=Yang |first11=Jie |last12=Shi |first12=Yunqing |last13=Ren |first13=Zhian |last14=Ma |first14=Hanming |last15=Yang |first15=Pengtao |last16=Liu |first16=Ziyi |last17=Liu |first17=Yue |last18=Zhang |first18=Hua |last19=Dong |first19=Xiaoli |last20=Wang |first20=Yuxin |last21=Jiang |first21=Kun |last22=Hu |first22=Jiangping |last23=Nagasaki |first23=Shoko |last24=Kitagawa |first24=Kentaro |last25=Calder |first25=Stuart |last26=Yan |first26=Jiaqiang |last27=Sun |first27=Jianping |last28=Wang |first28=Bosen |last29=Zhou |first29=Rui |last30=Uwatoko |first30=Yoshiya |last31=Cheng |first31=Jinguang |title=Bulk high-temperature superconductivity in pressurized tetragonal {{chem|La|2|Pr|Ni|2|O|7}} |journal=Nature |date=17 October 2024 |volume=634 |issue=8034 |pages=579–584 |doi=10.1038/s41586-024-07996-8 |pmid=39358510 }}

La2PrNi2O7

|

|

|tetragonal

|Superconductor under pressure Tc = 82.5°C

|

NdNiO3

|neodymium nickelate

|

| perovskite orthorhombic Pbnm, a = 5.38712 Å, b = 5.38267 Å, c = 7.60940 Å

|metallic insulator transition=200K

|

NdNiO2

|

|

|orthorhombic a = 5.402 Å, b = 7.608 Å, c = 5.377 Å, V = 221.0 Å3, density = 7.54

|

|{{cite web|title=details of selected material|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=17009&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4295019082&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Nd&need_more_type=prototype_number&material_id=4295348408&page=1&isConditionValueError=false|website=Atom Work|accessdate=23 April 2016}}{{cite journal|last1=García-Muñoz|first1=J. L.|last2=Aranda|first2=M. A. G.|last3=Alonso|first3=J. A.|last4=Martínez-Lope|first4=M. J.|title=Structure and charge order in the antiferromagnetic band-insulating phase of NdNiO3|journal=Physical Review B|date=28 April 2009|volume=79|issue=13|pages=134432|doi=10.1103/PhysRevB.79.134432|bibcode=2009PhRvB..79m4432G}}

Nd4Ni3O8

|

|

|orthorhombic a = 3.9171 Å, b = 3.9171 Å, c = 25.307 Å, V = 388.3 Å3, Z = 2, density = 7.54

|

|{{cite web|title=details of selected material|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=39885&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4295028170&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Nd&need_more_type=prototype_number&material_id=4296371193&page=1&isConditionValueError=false|website=Atom Work|accessdate=23 April 2016}}

Nd2NiO4

|

|

|Cmca a = 5.383 Å, b = 12.342 Å, c = 5.445 Å, V = 361.7 Å3, density = 7.55

|

|{{cite web|title=details of selected material|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=21953&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4295028189&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Nd&need_more_type=prototype_number&material_id=4296371644&page=1&isConditionValueError=false|website=Atom Work|accessdate=23 April 2016}}

Nd2BaNiO5

|chain nickelate

|

|Orthorhombic Immm, a = 2.8268 Å, b = 5.9272 Å, c = 11.651 Å

|

|{{cite journal|last1=Popova|first1=M. N.|last2=Romanov|first2=E. A.|last3=Klimin|first3=S. A.|last4=Chukalina|first4=E. P.|last5=Mill|first5=B. V.|last6=Dhalenne|first6=G.|title=Stark Structure and Exchange Splittings of Nd3+ Ion Levels in Chain Nickelate Nd2BaNiO5|journal=Physics of the Solid State|date=2005|volume=47|issue=8|pages=1497–1503 |bibcode=2005PhSS...47.1497P|doi=10.1134/1.2014500 }}

SmNiO3

|samarium nickelate

|SNO

| perovskite Pnma, a = 5.431 Å, b = 7.568 Å, c = 5.336 Å, V = 219.3 Å, Z = 4, density = 7.79

|metallic insulator transition=400K

|{{cite web|title=materials database 16998|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=16998&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294985215&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Sm&need_more_type=prototype_number&material_id=4295274412&page=1&isConditionValueError=false|accessdate=23 April 2016}}

Sm1.5Sr0.5NiO4

|

|SSNO

|orthorhombic Bmab

|giant dielectric constant 100,000

|{{cite journal|last1=Liu|first1=Xiao Qiang|last2=Wu|first2=Yong Jun|last3=Chen|first3=Xiang Ming|last4=Zhu|first4=Hai Yan|title=Temperature-stable giant dielectric response in orthorhombic samarium strontium nickelate ceramics|journal=Journal of Applied Physics|date=2009|volume=105|issue=5|pages=054104–054104–4|doi=10.1063/1.3082034|bibcode=2009JAP...105e4104L}}

EuNiO3

|europium nickelate

|

| perovskite orthorhombic a = 5.466 Å, b = 7.542 Å, c = 5.293 Å, V = 218.2 Å3, Z = 4, density = 7.87

|metallic insulator transition=460K

|{{cite book|last1=Lafez|first1=P.|last2=Ruello|first2=P.|last3=Edely|first3=M.|editor1-last=Lamont|editor1-first=Paul W.|title=Leading-Edge Materials Science Research|publisher=Nova Publishers|isbn=9781600217982|pages=277–310|chapter-url=https://books.google.com/books?id=3-3FL5ii01YC&pg=PA277|accessdate=21 April 2016|language=en|chapter=Electrical and Infrared Properties of RF Sputtering of Rare Earth Nickelate (RNiO3) Thin Films with Metal Insulator-Transitions|year=2008}}

GdNiO3

|gadolinium nickelate

|

| perovskite orthorhombic a = 0.5492 Å, b = 0.7506 Å, c = 0.5258 Å, V = 216.8 Å3, Z = 4, density = 8.09

|metallic insulator transition=510.9K

|

Gd2NiO4

|digadolinium nickelate

|

|Orthorhombic a = 3.851 Å, b = 3.851 Å, c = 6.8817 Å, V = 187.5 Å3, Z = 2, density = 7.75

|

|{{cite web|title=Materials database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=26095&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294992021&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Gd&need_more_type=prototype_number&material_id=4295347434&page=1&isConditionValueError=false|accessdate=23 April 2016}}

BaGd2NiO5

|barium digadolinium nickelate

|chain nickellate

|?orthorhombic

|low thermal conductance

|{{cite journal|last1=Nasani|first1=Narendar|last2=Oliveira Rocha|first2=Carlos Miguel|last3=Kovalevsky|first3=Andrei V.|last4=Otero Irurueta|first4=Gonzalo|last5=Populoh|first5=Sascha|last6=Thiel|first6=Philipp|last7=Weidenkaff|first7=Anke|last8=Neto da Silva|first8=Fernando|last9=Fagg|first9=Duncan P.|title=Exploring the Thermoelectric Performance of BaGd2NiO5 Haldane Gap Materials|journal=Inorganic Chemistry|date=8 February 2017|volume=56|issue=4|pages=2354–2362|doi=10.1021/acs.inorgchem.7b00049|pmid=28177255}}

Tb2BaNiO5

|chain nickelate

|

|Orthorhombic

|

|

DyNiO3

|dysprosium nickelate

|

| perovskite orthorhombic a = 0.55 Å, b = 0.7445 Å, c = 0.5212 Å V=213.4 Z=4 density=8.38

|metallic insulator transition=564.1K

|{{cite web|title=materials database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=17005&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294985215&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Dy&need_more_type=prototype_number&material_id=4295274419&page=1&isConditionValueError=false|accessdate=23 April 2016}}

Dy2BaNiO5

|chain nickelate

|

|Orthorhombic

|

|

HoNiO3

|holmium nickelate

|

| perovskite orthorhombic a = 3.96 Å, b = 3.96 Å, c = 5.04 Å, V = 212 Å3 Z = 4, density=8.51

|metallic insulator transition=560K

|

Ho2BaNiO5

|chain nickelate

|

|Orthorhombic Immm, a = 3.764 Å, b = 5.761 Å, c=11.336 Å

|

|{{cite journal|last1=García Matres|first1=E.|last2=Rodríguez Carvajal|first2=J.|last3=Martínez|first3=J.L.|last4=Salinas Sánchez|first4=A.|last5=Sáez Puche|first5=R.|title=Magnetic structure of Ho2BaNiO5|journal=Solid State Communications|date=February 1993|volume=85|issue=7|pages=553–559|doi=10.1016/0038-1098(93)90306-8|bibcode=1993SSCom..85..553G}}

ErNiO3

|erbium nickelate

|

| perovskite orthorhombic a = 5.514 Å, b =7.381 Å, c = 5.16 V=201 Z=4 density=8.67

|metallic insulator transition=580K

|{{cite web|title=materials database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=17002&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294985215&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Er&need_more_type=prototype_number&material_id=4295274416&page=1&isConditionValueError=false|accessdate=23 April 2016}}

Er2BaNiO5

|chain nickelate

|

|Orthorhombic Immm a = 3.7541 Å, b = 5.7442 Å c=11.3019 Å V=243.71 Å3 Z=2

|

|{{cite journal|last1=Alonso|first1=J. A.|last2=Amador|first2=J.|last3=Rasines|first3=I.|last4=Soubeyroux|first4=J. L.|title=Er2BaNiO5: structure refinement using neutron powder diffraction data|journal=Acta Crystallographica Section C|date=15 February 1991|volume=47|issue=2|pages=249–251|doi=10.1107/S0108270190008873|bibcode=1991AcCrC..47..249A }}

TmNiO3

|thulium nickelate

|

|orthorhombic a = 5.495 Å, b = 7.375 Å, c = 5.149 Å V = 208.7 Z = 4 density = 8.77

|

|{{cite web|title=materials database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=17001&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294985215&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Tm&need_more_type=prototype_number&material_id=4295274415&page=1&isConditionValueError=false|accessdate=23 April 2016}}

Tm2BaNiO5

|thulium barium nickelate

|

|Orthorhombic low temperature Pnma a = 12.2003 Å b = 5.65845 Å c = 6.9745 Å Z = 4; high T: Immm a = 3.75128 b = 5.7214 c = 11.2456

|Pnma form is brown Immm form is dark green

|{{cite journal|last1=Salinas Sánchez|first1=A.|last2=Sáez Puche|first2=R.|last3=Rodríguez Carvajal|first3=J.|last4=Martínez|first4=J.L.|title=Structural characterization of R2BaNiO5 (R = Tm and Yb): polymorphism for R = Tm|journal=Solid State Communications|date=May 1991|volume=78|issue=6|pages=481–488|doi=10.1016/0038-1098(91)90361-X|bibcode=1991SSCom..78..481S}}

YbNiO3

|ytterbium nickelate

|

|Orthorhombic a = 5.496 Å, b = 7.353 Å, c = 5.131 Å Z=4 V=207.4 Å3 density=8.96

|

|{{cite web|title=materials database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=17000&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294985215&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Yb&need_more_type=prototype_number&material_id=4295274414&page=1&isConditionValueError=false|accessdate=23 April 2016}}

Yb2BaNiO5

|ytterbium barium nickelate

|

|Orthorhombic Pnma a = 5.6423 Å, b = 6.9545 Å, c = 12.1583 Å V=477.1 Z=4 density=8.66

|Pnma form is brown

|

LuNiO3

|lutetium nickelate

|

| perovskite a = 5.499 Å, b = 7.356 Å, c = 5.117 Å, V = 207 Å3, Z = 4, density = 9.04

|metallic insulator transition=600K

|{{cite web|last1=Gibert|first1=Marta|last2=Catalano|first2=Sara|last3=Fowlie|first3=Jennifer|title=Researchkelates|url=http://dqmp.unige.ch/triscone/research.php?topic=nickelates|website=dqmp.unige.ch|accessdate=21 April 2016}}{{cite web|title=Materials database|url=http://crystdb.nims.go.jp/crystdb/search-details?substance_id=16999&tabDetail=pageS&need_more_value=&pageD=1&reference_id=4294985215&pageA=1&pageSubP=1&errorCode=0&pageSubD=1&pageSubA=1&isVisiblePeriodicTable=true&tab=pageA&tabSub=pageA&isNeedMoreValueError=false&search-type=search-materials&condition_type=chemical_system&history=true&pageS=1&pageP=0&pageSubS=1&condition_value=Ni+O+Lu&need_more_type=prototype_number&material_id=4295274413&page=1&isConditionValueError=false}}

Lu2BaNiO5

|

|

|Orthorhombic Pnma

|

|

TlNiO3

|thallium nickelate(III)

|

|perovskite a = 5.2549 Å, b = 5.3677 Å, c = 7.5620 Å, V = 213.3 Å3

|

|{{cite journal|last1=Kim|first1=Seung-Joo|last2=Demazeau|first2=Gérard|last3=Alonso|first3=José A.|last4=Choy|first4=Jin-Ho|title=High pressure synthesis and crystal structure of a new Ni(III) perovskite: TlNiO3|journal=Journal of Materials Chemistry|date=2001|volume=11|issue=2|pages=487–492|doi=10.1039/b007043m}}

PbNiO3

|

BiNiO3

|bismuth nickelate(III)

|

|perovskite triclinic a = 5.3852, b = 5.6498, c = 7.7078 Å, α = 91.9529°, β = 89.8097°, γ = 91.5411, V = 234.29 Å3

|Ni in +2 state, Bi in +3 and +5; stable 5–420K, antiferromagnetic

|{{cite journal|last1=Ishiwata|first1=Shintaro|last2=Azuma|first2=Masaki|last3=Takano|first3=Mikio|last4=Nishibori|first4=Eiji|last5=Takata|first5=Masaki|last6=Sakata|first6=Makoto|last7=Kato|first7=Kenichi|title=High pressure synthesis, crystal structure and physical properties of a new Ni(II) perovskite BiNiO3|journal=Journal of Materials Chemistry|date=29 November 2002|volume=12|issue=12|pages=3733–3737|doi=10.1039/b206022a}}{{cite journal|last1=Pugaczowa-Michalska|first1=M.|last2=Kaczkowski|first2=J.|title=DFT+U studies of triclinic phase of BiNiO3 and La-substituted BiNiO3|journal=Computational Materials Science|date=January 2017|volume=126|pages=407–417|doi=10.1016/j.commatsci.2016.10.014}}

See also

References

{{Reflist|30em}}

{{nickel compounds}}

Category:Nickel compounds

Category:Transition metal oxyanions

Category:Oxometallates