Artículos de revistas
Synthesis And Structural Characterization Of The Mixed-metal Species [co2ir2(co)10(η4-cod)] And [coir3(co)10(η4-cod)] (cod = 1,5-cyclooctadiene)
Registro en:
Journal Of Organometallic Chemistry. , v. 452, n. 01/02/15, p. 197 - 203, 1993.
0022328X
10.1016/0022-328X(93)83191-W
2-s2.0-1842824331
Autor
Livotto F.S.
Vargas M.D.
Grepioni F.
Braga D.
Institución
Resumen
The new mixed-metal clusters [CO2Ir2(CO)10(cod)] (4) and [CoIr3(CO)10(cod)] (5) (cod = 1,5-cyclooctadiene) have been obtained from [CO2(CO)8](2) and [IrCl(Cod)2] (3). Alternatively, [CO2Ir2(CO)12] (1) reacts with cod to yield 4, which in the presence of CO reforms 1. Under the same conditions, however, 5 is inert. The solid state structures of 4 and 5 have been established by X-ray analyses, and the disorder shown by the two species is discussed. Compound 4 is monoclinic, space group P21/c, a 8.891(2), b 10.746(3), c 22.648(8) Å, β 95.16(3)°, Z = 4, R = 0.048, R′= 0.050, for 2393 [I ≫ 2σ(I)] of 2596 absorption corrected reflections; compound 5 is also monoclinic, space group P21/m, a 8.5994(9), b 12.047(3), c 10.799(3) Å, β 98.30(1)°, Z = 2, R = 0.037, R′= 0.040, for 2071 [I ≫ 2σ(I)] of 2711 absorption corrected reflections. © 1993. 452 01/02/15 197 203 Stuntz, Shapley, Pierpont, (1978) Inorg. Chem., 17, p. 2596 Pierpont, (1979) Inorg. Chem., 18, p. 2972 Ros, Canziani, Roulet, (1984) J. Organomet. Chem., 267, p. C9 Braga, Ros, Roulet, (1985) J. Organomet. Chem., 286, p. C8 Ros, Scrivanti, Roulet, (1986) J. Organomet. Chem., 303, p. 273 Kitamura, Joh, (1974) J. Organomet. Chem., 65, p. 235 Martinengo, Chini, Albano, Cariati, Salvatori, (1973) J. Organomet. Chem., 59, p. 379 Albano, Ciani, Martinengo, (1974) J. Organomet. Chem., 65, p. 265 Labroue, Queau, Poilblanc, (1982) J. Organomet. Chem., 233, p. 359 Eshtiagh-Hosseini, Nixon, (1978) J. Organomet. Chem., 195, p. 129 Carré, Cotton, Frenz, Preparation and structure of a new derivative of tetrarhodium dodecacarbonyl. Further refinement of the structure of tetracobalt dodecacarbonyl (1976) Inorganic Chemistry, 15, p. 380 Churchill, Hutchinson, (1978) J. Organomet. Chem., 17, p. 5328 Braga, Grepioni, (1987) J. Organomet. Chem., 336, p. C9 Strawczynski, Ros, Roulet, Grepioni, Braga, Intramolecular Dynamics of Tetranuclear Carbonyliridium Cluster Compounds. Part II. Disubstituted complexes with one chelating ligand. Crystal structure of [Ir4(CO)7(?-CO)3(1,5-cyclooctadiene)] (1988) Helvetica Chimica Acta, 71, p. 1885 Braga, Grepioni, Guadalupi, Scrivanti, Ros, Roulet, (1987) Organometallics, 6, p. 56 Herde, Lambert, Senoff, (1974) Inorg. Synth., 15, p. 18 Sheldrick, (1976) System of Computer Programs, , SHELX76, University of Cambridge Walker, Stuart, An empirical method for correcting diffractometer data for absorption effects (1983) Acta Crystallographica Section A Foundations of Crystallography, 39, p. 158