Germyl

{{Chembox

| IUPACName = Germanide

| OtherNames = Trihydridogermanate(1-)
Trihydridogermanate(IV)
Trihydrogen germanide
Trihydrogermanide
Trihydridogermyl

|Section1={{Chembox Identifiers

|index1_label = radical

|index_label = anion

| CASNo1 = 13765-45-2

| ChEBI = 30552

| ChemSpiderID1 = 4573980

| ChemSpiderID = 21865063

| Gmelin = 305156

| SMILES = [GeH3-]

| InChI=1S/GeH3/h1H3/q-1

| InChIKey = SCCCLDWUZODEKG-UHFFFAOYSA-N

| SMILES1 = [GeH3]

| InChI1=1S/GeH3/h1H3

| InChIKey1 = WHYHZFHCWGGCOP-UHFFFAOYSA-N

}}

|Section2={{Chembox Properties

| Formula = {{chem2|GeH3−}}

| Ge=1|H=3

}}

|Section8={{Chembox Related

| OtherCations = Silanide (-SiH₃);
Stannyl (-SnH₃)

}}

Germyl, trihydridogermanate(1-), trihydrogermanide, trihydridogermyl or according to IUPAC Red Book: germanide{{cite book|publisher=IUPAC|title= Red Book|page=298|year=2005}} is an anion containing germanium bounded with three hydrogens, with formula {{chem2|GeH3−}}. Germyl is the IUPAC term for the –{{chem2|GeH3}} group. For less electropositive elements the bond can be considered covalent rather than ionic as "germanide" indicates. Germanide is the base for germane when it loses a proton.

:{{chem2|GeH4 → GeH3− + H+}}

The first germyl compound to be discovered was sodium germyl. Germane was reacted with sodium dissolved in liquid ammonia to produce sodium germyl.{{cite web |last1=Dreyfuss |first1=R. M. |last2=Jolly |first2=W. L. |title=The Reaction of Potassium Germyl with Organic Halides |url=https://escholarship.org/uc/item/33b7q116 |language=en |date=1 June 1971}}{{cite journal |last1=Kraus |first1=Charles A. |last2=Carney |first2=E. Seaton |title=Compounds of Germanium and Hydrogen: Some of their Reactions and Derivatives. I. Preparation of Monogermane. II. Sodium Trihydrogermanides |journal=Journal of the American Chemical Society |date=April 1934 |volume=56 |issue=4 |pages=765–768 |doi=10.1021/ja01319a002|bibcode=1934JAChS..56..765K }} Other alkali metal germyl compounds are known. There are also numerous transition metal complexes that contain germyl as a ligand.

Formation

Alkali metal germyl compounds have been made by reacting germane with the alkali metal dissolved in liquid ammonia, or other non-reactive solvent.

Transition metal complexes cam be made by using lithium aluminium hydride to reduce a trichlorogermyl complex (−{{chem2|GeCl3}}), which in turn can be made from the transition metal complex chloride and Germanium dichloride.{{Cite journal|last1=Albertin|first1=Gabriele|last2=Antoniutti|first2=Stefano|last3=Castro|first3=Jesús|date=January 2012|title=Synthesis and reactivity of germyl complexes of manganese and rhenium|url=https://linkinghub.elsevier.com/retrieve/pii/S0022328X11006036|journal=Journal of Organometallic Chemistry|language=en|volume=696|issue=26|pages=4191–4201|doi=10.1016/j.jorganchem.2011.09.014}}

Salt elimination can be used in a reaction with monochlorogermane and a sodium salt of a transition metal anion:

:{{chem2|GeClH3 + NaMn(CO)5 → NaCl + Mn(GeH3)(CO)5}}.

In the gas phase, the germyl anion {{chem2|GeH3−}} can be made from germane by capturing an electron with more than 8 eV of energy:

:{{chem2|GeH4 + e− → GeH3− + H^{•}|}}

The germyl radical can be produced and immobilised in molecular form by exposing germane to vacuum ultraviolet light in a solid argon matrix. On heating, digermane is formed:

:{{chem2|2 GeH3^{•} → GeH3GeH3}}{{cite journal |last1=Smith |first1=George R. |last2=Guillory |first2=William A. |title=Products of the Vacuum-Ultraviolet Photolysis of Germane Isolated in an Argon Matrix |journal=The Journal of Chemical Physics |date=15 February 1972 |volume=56 |issue=4 |pages=1423–1430 |doi=10.1063/1.1677383|bibcode=1972JChPh..56.1423S }}

Properties

Germyl compounds react with water, so water cannot be used as a solvent. Liquids that have been used as solvents include liquid ammonia, ethyl amine, diglyme, or hexamethylphosphoramide. The choice of solvent depends on the temperature desired, whether alkali metals are going to be dissolved, whether the solvent needs to be distilled, and also if it reacts with the solute.{{cite journal |last1=Cradock |first1=Stephen |last2=Gibbon |first2=G. A. |last3=Van Dyke |first3=Charles H. |title=Germyl chemistry. V. Hexamethylphosphoramide as a solvent for the preparation and reaction of alkali metal derivatives of silane and germane |journal=Inorganic Chemistry |date=September 1967 |volume=6 |issue=9 |pages=1751–1752 |doi=10.1021/ic50055a034}}

The bond between the metal ion and the germyl ion may be purely ionic, but may also be bonded via two bridging hydrogen atoms.{{Cite journal|last1=Teng|first1=Weijie|last2=Allis|first2=Damian G.|last3=Ruhlandt-Senge|first3=Karin|date=2007-01-22|title=Synthetic, Structural, and Theoretical Investigations of Alkali Metal Germanium Hydrides—Contact Molecules and Separated Ions|url=https://onlinelibrary.wiley.com/doi/10.1002/chem.200601073|journal=Chemistry – A European Journal|language=en|volume=13|issue=4|pages=1309–1319|doi=10.1002/chem.200601073|pmid=17133638}}

The energy to rip a hydrogen atom off germane to make the neutral radical is {{convert|82.0|+/-|2|kcal/mol|abbr=on}}. GeH₄ → GeH₃^• + H^•.{{cite journal |last1=Riveros |first1=José M. |title=Probing the gas-phase ion chemistry of simple Ge systems |journal=International Journal of Mass Spectrometry |date=December 2002 |volume=221 |issue=3 |pages=177–190 |doi=10.1016/s1387-3806(02)01025-4|bibcode=2002IJMSp.221..177R }} Electron affinity for the radical is 1.6 eV: GeH₃^• + e⁻ → GeH₃⁻.

Gas phase acidity of germane is ΔG{{su|p=°|b=acid}} is {{convert|350.8|+/-|1.3|kcal/mol|abbr=on}}; ΔH{{su|p=°|b=acid}} is {{convert|358.9|kcal/mol|abbr=on}} for {{chem2|GeH4 → GeH3(−) + H(+)}}.

Both the anion {{chem2|GeH3(−)}} and radical {{chem|GeH|3|•}} have C_3v symmetry, and are shaped as a triangular pyramid with germanium at the top, and three hydrogen atoms at the bottom. In the radical, the H-Ge-H angle is 110°. In the anion the H-Ge-H angle is about 93°.

Reactions

Germyl compounds gradually decompose at room temperature by releasing hydrogen and forming a metal germide.

Germyl compounds react with alkyl halides to substitute the germyl −{{chem2|GeH3}} group for the halogen. With aromatic halide compounds, dihalomethanes, or neopentyl haldes they replace the halogen with hydrogen. Organogermanium compounds that can be produced include methyl germane, dimethyl germane, digermyl methane, digermyl ethane, digermyl propane.

The germyl ion reacts with water to yield germane:

:{{chem2|GeH3(−) + H2O → GeH4 + OH(−)}}

Sodium germyl reacts with oxygen to form an orthogermanate:

:{{chem2|NaGeH3 + O2 → NaOGe(OH)3}}

This loses water at room temperature.

K[η⁵-C₅H₅)Mn(CO)₂GeH₃] reacts with acid to yield [η⁵-C₅H₅)Mn(CO)₂]₂Ge which has a Mn=Ge=Mn linkage in it.{{Cite journal|last1=Melzer|first1=Detlef|last2=Weiss|first2=Erwin|date=February 1984|title=GeMn-mehrfachbindungen in [(η5-C5H5)Mn(CO)]2Ge und [(η5-C5H5)Mn(CO)2]3Ge. [(η-C5H5)2V]2GeH2, eine metallverbindung mit einer GeH2-brücke|url=https://linkinghub.elsevier.com/retrieve/pii/0022328X84850111|journal=Journal of Organometallic Chemistry|language=de|volume=263|issue=1|pages=67–73|doi=10.1016/0022-328X(84)85011-1}}

List

class="wikitable"

!formula

!name

!mw

!system

!space group

!unit cell

!volume

!density

!comments

!ref

{{chem|LiGeH|3

•2NH|3}}

|{{Cite journal|last1=Amberger|first1=E.|last2=Boeters|first2=H. D.|date=1963-09-21|title=Darstellung von LiGeH3 · 2NH3 und KSbH2|url=https://onlinelibrary.wiley.com/doi/10.1002/ange.19630751819|journal=Angewandte Chemie|language=de|volume=75|issue=18|pages=860|doi=10.1002/ange.19630751819|bibcode=1963AngCh..75..860A}}

|Sodium Trihydrogermanide

|white

{{chem|NaGeH|3

•2NH|3}}

{{chem|NaGeH|3

•4.5NH|3}}

{{chem|NaGeH|3

•6NH|3}}

P(GeH₃)₃

|{{Cite journal|last1=Chizmeshya|first1=A. V. G.|last2=Ritter|first2=C.|last3=Tolle|first3=J.|last4=Cook|first4=C.|last5=Menéndez|first5=J.|last6=Kouvetakis|first6=J.|date=2006-12-01|title=Fundamental Studies of P(GeH 3 ) 3 , As(GeH 3 ) 3 , and Sb(GeH 3 ) 3 : Practical n -Dopants for New Group IV Semiconductors|url=https://pubs.acs.org/doi/10.1021/cm061696j|journal=Chemistry of Materials|language=en|volume=18|issue=26|pages=6266–6277|doi=10.1021/cm061696j|issn=0897-4756}}

KGeH₃

|cubic

|a=7.235

|2.003

|NaCl structure

|{{Cite journal|last1=Teal|first1=Gordon K.|last2=Kraus|first2=Charles A.|date=October 1950|title=Compounds of Germanium and Hydrogen. III. Monoalkylgermanes. IV. Potassium Germanyl. V. Electrolysis of Sodium Germanyl 1|url=https://pubs.acs.org/doi/abs/10.1021/ja01166a100|journal=Journal of the American Chemical Society|language=en|volume=72|issue=10|pages=4706–4709|doi=10.1021/ja01166a100|bibcode=1950JAChS..72.4706T |issn=0002-7863}}{{Cite journal|last1=Thirase|first1=G.|last2=Weiss|first2=E.|last3=Hennig|first3=H. J.|last4=Lechert|first4=H.|date=October 1975|title=Präparative, röntgenographische und1 H-Breitlinienresonanzuntersuchungen an Germylalkaliverbindungen, GeH3 M|url=https://onlinelibrary.wiley.com/doi/10.1002/zaac.19754170306|journal=Zeitschrift für anorganische und allgemeine Chemie|language=de|volume=417|issue=3|pages=221–228|doi=10.1002/zaac.19754170306|issn=0044-2313}}

K([18]crown-6)(thf)GeH₃

|451.13

|monoclinic

|Pc

|a=13.8587 b=9.9670 c=16.9439 β=107.206 Z=4

|2235.7

|1.34

|colourless

K([15]crown-5)₂GeH₃

|555.23

|tetrahedral

|I{{overbar|4}}

|a=12.685 c=16.985 Z=4

|2733.0

|1.349

|colourless

K([12]crown-4)₂GeH₃

|467.13

|monoclinic

|C2/c

|a=40.7694 b=6.623 c=29.6746 β=97.450 Z=16

|9144.9

|1.357

|colourless

K[V(CO)₃(η⁵-C₅H₅)GeH₃]

|{{Cite journal|last1=Pohlmann|first1=Heinrich|last2=Weiss|first2=Erwin|date=August 1988|title=GeH3-substituierte Carbonylmetallate und Carbonyl(cyclopentadienyl)-metallate mit V, Nb, Cr, Mo, W, Re, Co und Ni Präparative und röntgenographische Untersuchungen|url=https://onlinelibrary.wiley.com/doi/10.1002/cber.19881210812|journal=Chemische Berichte|language=de|volume=121|issue=8|pages=1427–1433|doi=10.1002/cber.19881210812}}

[PPh₄][V(CO)₃(η⁵-C₅H₅)GeH₃]

|orthorhombic

|Pcab

|a=17.47 b=15.68 c=21.49 Z=8

|5886

|1.39

|yellow

|{{Cite journal|last1=Holloway|first1=Clive E.|last2=Melnik|first2=Milan|title=Germanium Heterometallic Compounds: Classification and Analysis of Crystallograpphic and Structural Data|date=January 2002|journal=Main Group Metal Chemistry|volume=25|issue=6|doi=10.1515/MGMC.2002.25.6.331|s2cid=100597813|issn=2191-0219|doi-access=free}}

K[Cr(CO)₅GeH₃]

|{{Cite journal|last1=Melzer|first1=Detlef|last2=Weiss|first2=Erwin|date=July 1984|title=GeH3-Substituierte Carbonylmetallate von Cr, W, Mn und Co. Die Kristallstruktur von [PPh4]Cr(CO)5GeH3]|url=https://onlinelibrary.wiley.com/doi/10.1002/cber.19841170717|journal=Chemische Berichte|language=de|volume=117|issue=7|pages=2464–2468|doi=10.1002/cber.19841170717}}

[PPh₄][Cr(CO)₅GeH₃]

|monoclinic

|C2/c

|a=22.301 b=6.989 c=18.002 β=? Z=4

|2788.5

|1.45

|yellow

Mn(GeH₃)(CO)₅

Mn(GeH₃)(CO)₂(PPh(OEt)₂)₃

|pale yellow

Mn(GeH₃)(CO)₃(PPh(OEt)₂)₂

|610.96

|triclinic

|P{{overbar|1}}

|a=10.118 b=11.060 c=13.009 α=97.859 β=98.612 γ=92.856 Z=2

|1422.3

|1.427

|pale yellow

Mn(GeH₃)(CO)₂(P(OEt)₃)₃

|pale yellow

Mn(GeH₃)(CO)₃(P(OEt)₃)₂

|pale yellow

K[η⁵-C₅H₅)Mn(CO)₂GeH₃]

[(CH₃)₄N][η-CH₃C₅H₄Mn(CO)₂GeH₃]

|triclinic

|P{{overbar|1}}

|a=6.948 b=9.658 c=11.784 α=89.57 β=77.37 γ=88.05 Z=2

|772

|1.45

|{{Cite journal|last1=Gäde|first1=Wolfgang|last2=Weiss|first2=Erwin|date=July 1981|title=Carbonyl(cyclopentadienyl)mangan-Verbindungen mit Mn — GeH3- und Mn — GeCl3-Gruppen. Die Kristallstrukturen von [(CH3)4N][η-CH3C5H4Mn(CO)2GeH3] und η-CH3C5H4Mn(CO)2(GeCl3)2|url=https://onlinelibrary.wiley.com/doi/10.1002/cber.19811140706|journal=Chemische Berichte|language=de|volume=114|issue=7|pages=2399–2404|doi=10.1002/cber.19811140706}}

[(CH₃)₄N][η-CH₃C₅H₄Mn(CO)₂GeH₃]

|triclinic

|P{{overbar|1}}

|a=6.958 b=9.658 c=11.784 α=89.57 β=77.37 γ=88.05 Z=2

|772

|1.46

(GeH₃)₂Fe(CO)₄

|digermyltetracarbonyliron

|mp 71°C colourless

|{{Cite journal|last=Stobart|first=S. R.|date=1972|title=Transition-metal carbonyl derivatives of the Germanes. Part III. Germyl(carbonyl)iron complexes|url=http://xlink.rsc.org/?DOI=dt9720002442|journal=Journal of the Chemical Society, Dalton Transactions|language=en|issue=22|pages=2442–2447|doi=10.1039/dt9720002442|issn=0300-9246}}

GeH₃(H)Fe(CO)₄

|monogermylhydridotetracarbonyliron

|mp −30°C colourless

GeH₃Fe(C₅H₅)(CO)₂

|Germyl(cyclopentadienyl)dicarbonyliron

|mp 81°C yellow

Fe(CO)₄(GeH₂GeH₃)(GeH₃)

|{{Cite journal|last1=BONNY|first1=A|last2=MACKAY|first2=K. M.|last3=SIN WONG|first3=F.|date=1985|title=Transition metal carbonyl derivatives of the germanes. XVI: Preparation and properties of the digermane-tetracarbonyliron compounds, [Fe(CO)4(GeH2GeH3)2] and [Fe(CO)4(GeH2GeH3)(GeH3)] with some observations on [Fe(CO)4(GeH3)2]|url=https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=9060678|journal= Journal of Chemical Research. Synopses |issue=2 |pages=40–41|issn=0308-2342}}

Fe(CO)₄(GeH₃)(GeMe₃)

|{{Cite journal|last1=Anema|first1=Skelte G.|last2=Audett (née Christie)|first2=Judy A.|last3=Mackay|first3=Kenneth M.|last4=Nicholson|first4=Brian K.|date=1988|title=Transition-metal carbonyl derivatives of the germanes. Part 17. Tetracarbonylgermyl(trimethylgermyl)iron, [Fe(CO) 4 (GeH 3 )(GeMe 3 )], its conversion into [{Fe(CO) 4 (GeH 2 )} 2 ], and hence to [Co 4 Fe 2 Ge 2 (CO) 21 ](characterised by X-ray crystallography)via[Co 4 Fe 2 Ge 2 (CO) 22 ]|url=http://xlink.rsc.org/?DOI=DT9880002629|journal=J. Chem. Soc., Dalton Trans.|language=en|issue=10|pages=2629–2634|doi=10.1039/DT9880002629|issn=0300-9246}}

{Fe(CO)₄(GeH₂)}₂

|-Fe-Ge-Fe-Ge- ring

K[Co₂(CO)₇GeH₃]

[PPh₄]Co₂(CO)₇GeH₃]

K[Co-(CO)(η⁵C₆H₅)GeH₃]

[PPh₄][Co-(CO)(η⁵C₆H₅)GeH₃]

K[Co-(CO)(η⁵C₆(CH₃)₅)GeH₃]

[PPh₄][Co-(CO)(η⁵C₆(CH₃)₅)GeH₃]

K[(η⁵-C₅H₅)-Mn(CO)₂GeH₃]

K[Ni(CO)₃GeH₃]

[PPh₄][Ni(CO)₃GeH₃]

|monoclinic

|C2

|a=16.855 b=7.098 c=15.189 β=134.71 Z=2

|1291.5

|1.43

|orange yellow

K[Ni(CO)₂(PPh₃)GeH₃]

[PPh₄][Ni(CO)₂(PPh₃)GeH₃]

|monoclinic

|P2₁/n

|a=10.37 b=22.37 c=16.95 β=96.23 Z=4

|2910.6

|1.74

|orange yellow

As(GeH₃)₃

Rb([18]crown-6)(thf)GeH₃

|497.50

|monoclinic

|Cc

|a=13.8336 b=9.9878 c=16.9893 β=107.417 Z=4

|2239.7

|1.475

|colourless

RbGeH₃

|a=7.518

|2.518

K[Nb(CO)₃(η⁵-C₅H₅)GeH₃]

[PPh₄][Nb(CO)₃(η⁵-C₅H₅)GeH₃]

K[Mo(CO)₅GeH₃]

[PPh₄][Mo(CO)₅GeH₃]

|monoclinic

|C2/c

|a=22.25 b=7.021 c=18.545 β=96.14 Z=4

|2881

|1.5

|yellow

Ru(GeH₃)(η⁵-C₅H₅)(PPh₃)P(OMe)₃

|628.12

|monoclinic

|P2₁/c

|a=17.932 b=10.067 c=16.375, β=114.508° Z=4

|2689.6

|1.551

|yellow

|{{Cite journal|last1=Albertin|first1=Gabriele|last2=Antoniutti|first2=Stefano|last3=Castro|first3=Jesús|last4=Scapinello|first4=Federica|date=February 2014|title=Preparation and reactivity of germyl complexes of ruthenium and osmium stabilised by cyclopentadienyl, indenyl and tris(pyrazolyl)borate fragments|url=https://linkinghub.elsevier.com/retrieve/pii/S0022328X13004762|journal=Journal of Organometallic Chemistry|language=en|volume=751|pages=412–419|doi=10.1016/j.jorganchem.2013.06.028}}

Ru(GeH₃)(η⁵-C₅H₅)(PPh₃)P(OEt)₃

|yellow

Ru(GeH₃)(η⁵-C₅H₅)(PPh₃)PPh(OEt)₂

|yellow

Ru(GeH₃)(η⁵-C₉H₇)(PPh₃)P(OMe)₃

|yellow

Ru(GeH₃)(η⁵-C₉H₇)(PPh₃)P(OEt)₃

|yellow

Ru(GeH₃)(η⁵-C₉H₇)(PPh₃)PPh(OEt)₂

|yellow

Ru(GeH₃)(Tp)(PPh₃))P(OEt)₃

|yellow

Ru(GeH₃)(Tp)(PPh₃)PPh(OEt)₂

|yellow

cis-[Ru(dppe)₂(GeH₃)H]•C₆H₆

|1014.4

|triclinic

|P{{overbar|1}}

|a 12.3464 b 13.2412 c 16.2053, α 90.055° β 98.868° γ 116.164° Z=2

|2342.3

|1.438

|{{Cite journal|last1=Dickinson|first1=David P.|last2=Evans|first2=Simon W.|last3=Grellier|first3=Mary|last4=Kendall|first4=Hannah|last5=Perutz|first5=Robin N.|last6=Procacci|first6=Barbara|last7=Sabo-Etienne|first7=Sylviane|last8=Smart|first8=Katharine A.|last9=Whitwood|first9=Adrian C.|date=2019-02-11|title=Photochemical Oxidative Addition of Germane and Diphenylgermane to Ruthenium Dihydride Complexes|url=https://pubs.acs.org/doi/10.1021/acs.organomet.8b00770|journal=Organometallics|language=en|volume=38|issue=3|pages=626–637|doi=10.1021/acs.organomet.8b00770|s2cid=104464237 |issn=0276-7333}}

trans-[Ru(dppe)₂(GeH₃)H]

cis-[Ru(depe)₂(GeH₃)H]

trans-[Ru(depe)₂(GeH₃)H]

cis-[Ru(dmpe)₂(GeH₃)H]

trans-[Ru(dmpe)₂(GeH₃)H]

cis-[Ru(DuPhos)₂(GeH₃)H]

|790.38

|orthorhombic

|P2₁2₁2₁

|a 10.1222 b 18.4327 c 19.425 Z=4

|3624.4

|1.448

Ru(GeH₃)(Cp′)L Cp′=η⁵-C₅Me₅ L=1,2-[bis(diphenyl) phosphanyloxy]-1,2-diphenylethane

|{{Cite journal|last1=Álvarez-Pazos|first1=Nuria|last2=Bravo|first2=Jorge|last3=García-Fontán|first3=Soledad|date=September 2019|title=Synthesis and reactivity of germyl complex of Ruthenium(II)|url=https://linkinghub.elsevier.com/retrieve/pii/S0020169319306292|journal=Inorganica Chimica Acta|language=en|volume=495|pages=118959|doi=10.1016/j.ica.2019.118959|s2cid=196864226 }}

Ru(GeH₃)(Cp′)L Cp′=η⁵-C₉H₇ L=1,2-[bis(diphenyl) phosphanyloxy]-1,2-diphenylethane

Sb(GeH₃)₃

|trigermylstibine

|{{Cite journal|last1=Ebsworth|first1=E. A. V.|last2=Rankin|first2=D. W. H.|last3=Sheldrick|first3=G. M.|date=1968|title=Preparation and properties of trigermyl-arsine and -stibine|url=http://xlink.rsc.org/?DOI=j19680002828|journal=Journal of the Chemical Society A: Inorganic, Physical, Theoretical|language=en|pages=2828–2830|doi=10.1039/j19680002828|issn=0022-4944}}

Cs([18]crown-6)₂GeH₃

|734.12

|tetrahedral

|P4/n

|a=13.2513 c=19.0577 Z=4

|3346.5

|1.457

|colourless

CsGeH₃

|orthorhombic

|a=5.1675 b=14.435 c=5.9664

|3.111

K[W(CO)₅GeH₃]

[PPh₄][W(CO)₅GeH₃]

|monoclinic

|C2/c

|a=22.227 b=7.025 c=18.529 β=96.11 Z=4

|2883.2

|1.71

|yellow

GeH₃Re(CO)₅

|Germylpentacarbonylrhenium

|colourless mp 53-54°C

|{{Cite journal|last1=Mackay|first1=K. M.|last2=Stobart|first2=S. R.|date=1973|title=Transition-metal carbonyl derivatives of the germanes. Part IV. Germylpentacarbonylrhenium|url=http://xlink.rsc.org/?DOI=dt9730000214|journal=Journal of the Chemical Society, Dalton Transactions|language=en|issue=2|pages=214–217|doi=10.1039/dt9730000214|issn=0300-9246}}

GeH₂[Re(CO)₅]₂

|bis(pentacarbonylrhenium)germane

Re(GeH₃)(CO)₂(PPh(OEt)₂)₃

|white

Re(GeH₃)(CO)₃(PPh(OEt)₂)₂

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Re(GeH₃)(CO)₂(P(OEt)₃)₃

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Re(GeH₃)(CO)₃(P(OEt)₃)₂

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K[Re(CO)₂(η⁵-C₅H₅)GeH₃]

[PPh₄][Re(CO)₂(η⁵-C₅H₅)GeH₃]

Os(GeH₃)(Tp)(PPh₃)P(OMe)₃ Tp = tris(pyrazolyl)borate

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Germylidyne with formula ≡GeH has a triple bond to the metal atom.{{Cite journal|last1=Wang|first1=Xuefeng|last2=Andrews|first2=Lester|date=2008-09-15|title=Infrared Spectra, Structure, and Bonding of the GeH 3 —CrH, HGe≡MoH 3 , and HGe≡WH 3 Molecules in Solid Neon and Argon|url=https://pubs.acs.org/doi/10.1021/ic800552s|journal=Inorganic Chemistry|language=en|volume=47|issue=18|pages=8159–8166|doi=10.1021/ic800552s|pmid=18698694|issn=0020-1669}}

Germylidene with base formula ={{chem2|GeH2}} has a double bond to the central metal.{{Cite journal|last1=Lee|first1=Vladimir Ya.|last2=Sakai|first2=Ryo|last3=Takanashi|first3=Kazunori|last4=Gapurenko|first4=Olga A.|last5=Minyaev|first5=Ruslan M.|last6=Gornitzka|first6=Heinz|last7=Sekiguchi|first7=Akira|date=2021-02-19|title=Titanium Germylidenes|url=https://onlinelibrary.wiley.com/doi/10.1002/anie.202015704|journal=Angewandte Chemie International Edition|language=en|volume=60|issue=8|pages=3951–3955|doi=10.1002/anie.202015704|pmid=33289313|s2cid=227947452|issn=1433-7851}}

References

Category:Germanium(II) compounds

Category:Metal hydrides

Category:Anions