hydridotetrakis(triphenylphosphine)rhodium(I)

{{Chembox

| Name=Hydridotetrakis(triphenylphosphine){{shy}}rhodium(I)

| ImageFile = HRhP4.svg

| ImageSize = 166px

| ImageAlt =

| IUPACName =

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo = 18284-36-1

| CASNo_Ref = {{Cascite|correct|CAS}}

| ChemSpiderID = 23089353

| EINECS = 624-922-3

| PubChem =

| PubChem_Comment =

| SMILES = 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.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.[Rh][H]}}

|Section2={{Chembox Properties

| C=72|H=61|P=4|Rh=1

| MolarMass = 1153.12

| Appearance = yellow solid

| Density = 1.328 g/cm³

| MeltingPtC = 162–163

| BoilingPt =

| Solubility = }}

|Section3={{Chembox Hazards

| GHSPictograms = {{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|315|319|335}}

| PPhrases = {{P-phrases|261|264|271|280|302+352|304+340|305+351+338|312|321|332+313|337+313|362|403+233|405|501}}

| MainHazards =

| FlashPt =

| AutoignitionPt = }}

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Hydridotetrakis(triphenylphosphine)rhodium(I) is the coordination complex with the formula HRh[P(C₆H₅)₃]₄. It consists of a Rh(I) center complexed to four triphenylphosphine (PPh₃) ligands and one hydride. The molecule has idealized C_3v symmetry.{{cite journal|doi=10.1039/c29690001495|title=The crystal and molecular structure of tetrakistriphenylphosphinerhodium(I) hydride|journal=Journal of the Chemical Society D: Chemical Communications|issue=24|pages=1495|year=1969|last1=Baker|first1=R. W.|last2=Pauling|first2=Peter}} The compound is a homogeneous catalyst for hydrogenation and related reactions.Eduardo Peña-Cabrera "Hydridotetrakis(triphenylphosphine)rhodium" Encyclopedia of Reagents for Organic Synthesis, 2001, John Wiley & Sons. {{doi|10.1002/047084289X.rh030m}} It is a yellow solid that dissolves in aromatic solvents.