Diphosphines
Abbreviation Common name ( from which abbreviation derived ) IUPAC Name ( rarely used )
dppm 1,1-Bis ( diphenylphosphino ) methane Methylene bis ( diphenylphosphane )
dmpe 1,2-Bis ( dimethylphosphino ) ethane Ethane-1,2-diylbis ( dimethylphosphane )
dippe 1,2-Bis ( diisopropylphosphino ) ethane Ethane-1,2-diylbis ( di ( propan-2-yl ) phosphane )
dppe 1,2-Bis ( diphenylphosphino ) ethane Ethane-1,2-diylbis ( diphenylphosphane )
DIPAMP derivative of phenylanisylmethylphosphine Ethane-1,2-diylbis [ ( 2-methoxyphenyl ) phenylphosphane ]
dcpe Bis ( dicyclohexylphosphino ) ethane
dppp 1,3-Bis ( diphenylphosphino ) propane Propane-1,3-diylbis ( diphenylphosphane )
dppb 1,4-Bis ( diphenylphosphino ) butane Butane-1,4-diylbis ( diphenylphosphane )
DIOP ( S , S ) -DIOP ( O-isopropylidene-2,3-dihydroxy-1,4-bis ( diphenylphosphino ) butane ) O-Isopropylidene-2,3-dihydroxy-1,4-bis ( diphenylphosphino ) butane
Chiraphos 2,3-Bis ( diphenylphosphino ) butane Butane-2,3-diylbis ( diphenylphosphane )
BINAP 2,2'-Bis ( diphenylphosphino ) -1,1'-binaphthyl 1,1'-Binaphthalene-2,2'-diylbis ( diphenylphosphane )
Xantphos 4,5-Bis ( diphenylphosphino ) -9,9-dimethylxanthene 9,9-Dimethyl-9 H -xanthene-4,5-diylbis ( diphenylphosphane )
DPEphos Bis [ ( 2-diphenylphosphino ) phenyl ] ether
SPANphos 4,4,4',4',6,6'-Hexamethyl-2,2'-spirobichromane-8,8'-diylbis ( diphenylphosphane )
SEGPHOS 4,4'-Bi-1,3-benzodioxole-5,5'-diylbis ( diphenylphosphane )
dppf 1,1'-Bis ( diphenylphosphino ) ferrocene
Me-DuPhos 1,2-Bis ( 2,5-dimethylphospholano ) benzene 1,2-Phenylenebis ( 2,5-dimethylphospholane )
Josiphos ( Diphenylphosphino ) ferrocenyl-ethyldicyclohexylphosphine 1,5-Diaza-3,7-diphosphacyclooctanes
P2N2 1,5-Diaza-3,7-diphosphacyclooctanes
Representative ligands
Particularly common diphosphine ligands are shown in the table below : [ 11 ]
Diphosphines, sometimes called bisphosphanes, are organophosphorus compounds most commonly used as bidentate phosphine ligands in inorganic and organometallic chemistry. They are identified by the presence of two phosphino groups linked by a backbone, and are usually chelating. A wide variety of diphosphines have been synthesized with different linkers and R-groups. Alteration of the linker and R-groups alters the electronic and steric properties of the ligands which can result in different coordination geometries and catalytic behavior in homogeneous catalysts.