TY - JOUR
T1 - Cluster chemistry. LXVI. Some ironiridium clusters. X-ray structures of Fe2Ir(μ3-C2Ph)(CO)8(PPh3), FeIr2(μ3-η2-PhC2C2Ph)(CO)7(PPh3)2 and Fe2Ir(μ3-PhC2PEt3)(CO)7(PEt3)
AU - Bruce, Michael I.
AU - Koutsantonis, George A.
AU - Tiekink, Edward R.T.
PY - 1991/4/23
Y1 - 1991/4/23
N2 - Reactions between Ir(C2Ph)(CO)2(PPh3)2 and iron carbonyls (Fe(CO)5, Fe2(CO)9 have given FeIr clusters Fe2Ir(μ3-C2Ph)(CO)9-n(PPh3)n (n = 1 (8), 2) and FeIr2(μ3-PhC2C2Ph)(CO)7(PPh3)2 (9). The Rh analogue of 8 was obtained similarly. Substitution of IrPPh3 by PEt3, and addition of PEt3 to Cα of the acetylide ligand in 8 gave zwitterionic Fe2Ir(μ3-PhC2PEt3)(CO)8(PEt3) (12), which on heating was converted to Fe2Ir(μ3-C2Ph)(CO)7(PEt3)2 by migration of PEt3 from C to Ir. Related complexes containing clustr-bonded PR3 were obtained with PMe2Ph and P(OMe)3. Complexes 8, 9 and 12 were fully characterised by X-ray crystallography.
AB - Reactions between Ir(C2Ph)(CO)2(PPh3)2 and iron carbonyls (Fe(CO)5, Fe2(CO)9 have given FeIr clusters Fe2Ir(μ3-C2Ph)(CO)9-n(PPh3)n (n = 1 (8), 2) and FeIr2(μ3-PhC2C2Ph)(CO)7(PPh3)2 (9). The Rh analogue of 8 was obtained similarly. Substitution of IrPPh3 by PEt3, and addition of PEt3 to Cα of the acetylide ligand in 8 gave zwitterionic Fe2Ir(μ3-PhC2PEt3)(CO)8(PEt3) (12), which on heating was converted to Fe2Ir(μ3-C2Ph)(CO)7(PEt3)2 by migration of PEt3 from C to Ir. Related complexes containing clustr-bonded PR3 were obtained with PMe2Ph and P(OMe)3. Complexes 8, 9 and 12 were fully characterised by X-ray crystallography.
UR - http://www.scopus.com/inward/record.url?scp=0001477582&partnerID=8YFLogxK
U2 - 10.1016/0022-328X(91)86317-J
DO - 10.1016/0022-328X(91)86317-J
M3 - Article
AN - SCOPUS:0001477582
SN - 0022-328X
VL - 407
SP - 391
EP - 412
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 3
ER -