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bis(triphenylphosphine)iron tricarbonyl

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| ImageFile = FeP2(CO)3.svg

| ImageSize = 120

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|Section1={{Chembox Identifiers

| CASNo = 21255-52-7

| PubChem = 6097100

| ChemSpiderID = 4807608

| StdInChI=1S/2C18H15P.3CO.Fe/c2*1-4-10-16(11-5-1)19(17-12-6-2-7-13-17)18-14-8-3-9-15-18;3*1-2;/h2*1-15H;;;;

| StdInChIKey = NPCXYZUUVGQEGS-UHFFFAOYSA-N

| SMILES = [C-]#[O+].[C-]#[O+].[C-]#[O+].C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.C1=CC=C(C=C1)P(C2=CC=CC=C2)C3=CC=CC=C3.[Fe]

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|Section2={{Chembox Properties

| C=39|H=30|Fe=1|O=3|P=2

| MolarMass =

| Appearance = yellow solid

| Density =

| MeltingPtC = 262-266

| MeltingPt_notes = decomp

| BoilingPt =

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|Section3={{Chembox Hazards

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Tricarbonylbis(triphenylphosphine)iron(0) is a coordination complex with the formula Fe(CO)3(PPh3)2 (Ph = C6H5). A yellow solid, this complex is derived from iron pentacarbonyl by replacement of two carbonyl ligands by triphenylphosphine (PPh3).

Synthesis and reactions

The title complex can be prepared by reaction of triiron dodecacarbonyl with excess triphenylphosphine:{{cite book |doi=10.1002/9780470132395.ch49|chapter=Iron Carbonyl Complexes of Triphenylphosphine, Triphenylarsine, and Triphenylstibine |year=1966 |last1=Clifford |first1=A. F. |last2=Mukherjee |first2=A. K.|title=Inorganic Syntheses |pages=185–191 |volume=VIII|isbn=9780470131671 }}

:{{chem2|Fe3(CO)12 + 6 P(C6H5)3 → 3 Fe(CO)3(P(C6H5)3)2 + 3 CO}}

(Triphenylphosphine)iron tetracarbonyl is an intermediate in the synthesis of this compound. The title complex can also be produced more efficiently by borohydride-catalyzed substitution of iron pentacarbonyl.{{cite book | last1= Therien|first1= M. J.|last2= Trogler|first2= W. C.|chapter= Bis(Phosphine) Derivatives of Iron Pentacarbonyl and Tetracarbonyl (Tri-tert-Butylphosphine)Iron(0) | title = Inorg. Synth. |year = 1990 | volume = 28 | pages = 173–9 | doi = 10.1002/9780470132593.ch45|isbn= 9780471526193}}{{cite book |doi=10.1002/9780470132623.ch31|series=Inorganic Syntheses|last1=Keiter|first1=Richard L.|last2=Keiter|first2=Ellen A.|last3=Boecker|first3=Carol A.|last4=Miller|first4=David R.|last5=Hecker|first5=Karl H.|title=Tricarbonylbis(Phosphine)Iron(0) Complexes |pages=210–214|volume=31|year=1997|isbn=9780470132623}}

Protonation gives the ferrous hydride:{{cite journal |doi=10.1021/ja00024a026|title=Heats of Protonation of Transition-Metal Complexes: The Effect of Phosphine Basicity on Metal Basicity in CpIr(CO)(PR3) and Fe(CO)3(PR3)2|year=1991|last1=Sowa|first1=John R.|last2=Zanotti|first2=Valerio|last3=Facchin|first3=Giacomo|author4=Robert Angelici|journal=Journal of the American Chemical Society|volume=113|issue=24|pages=9185–9192|bibcode=1991JAChS.113.9185S }}

:{{chem2|Fe(CO)3(P(C6H5)3)2 + HBF4 -> [HFe(CO)3(P(C6H5)3)2]BF4}}

Both the mono- and bis(triphenylphosphine) complexes were originally described by Walter Reppe.{{cite journal |first1=Walter|last1=Reppe|first2=Walter Joachim|last2=Schweckendiek|doi=10.1002/jlac.19485600104|title=Cyclisierende Polymerisation von Acetylen. III Benzol, Benzolderivate und hydroaromatische Verbindungen|journal=Justus Liebigs Annalen der Chemie|year=1948|volume=560|pages=104–116}}

References

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Category:Triphenylphosphine complexes

Category:Iron carbonyl complexes