NEW TRANSITION-METAL BINDING MODES FOR CREATININE - MOLECULAR-STRUCTURES OF [(C(4)R(4))IR(C4H7N3O)(PPH(3))(2)CL] AND [(C(4)R(4))IR(C4H7N3O)(PPH(3))(2)]BF4, (R=CO2CH3)

Authors
OCONNOR JM HIIBNER K RHEINGOLD AL LIABLESANDS LM
Citation
Jm. Oconnor et al., NEW TRANSITION-METAL BINDING MODES FOR CREATININE - MOLECULAR-STRUCTURES OF [(C(4)R(4))IR(C4H7N3O)(PPH(3))(2)CL] AND [(C(4)R(4))IR(C4H7N3O)(PPH(3))(2)]BF4, (R=CO2CH3), Polyhedron, 16(12), 1997, pp. 2029-2035
Citations number
23
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
16
Issue
12
Year of publication
1997
Pages
2029 - 2035
Database
ISI
SICI code
0277-5387(1997)16:12<2029:NTBMFC>2.0.ZU;2-H
Abstract
Reaction of [(C(4)R(4))Ir(PPh(3))(2)Cl] (4, R = CO2CH3) and creatinine in chloroform at 23 degrees C gave the creatinine complex [(C(4)R(4)) Ir(C4H7N3O)(PPh(3))(2)Cl] (6) in 81% isolated yield. Reaction of the b is (acetonitrile)iridium cation [(C(4)R(4))Ir(NCCH3)(2)(PPh(3))(2)][BF 4] (5, R = CO2CH3) and creatinine in chloroform at 23 degrees C gave [ (C(4)R(4))Ir(C4H7N3O)(PPh(3))(2)][BF4] (7, R = CO2CH3) in 96% isolated yield. X-ray crystallography established two unprecedented coordinati on modes for creatine in complexes 6 and 7. In complex 6 the creatinin e is bound to iridium in a monodentate fashion through the exocyclic n itrogen, whereas creatinine serves as a bidentate eta(2)-(N, O)-ligand in 7. (C) 1997 Elsevier Science Ltd.