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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 13, Number 5
BKCSDE 13(5)
May 20, 1992

Title	Preparation and Characterization of Dinuclear Metal Complexes, [(PPh3)2(CO)M(μ-E)M(CO)(PPh3)2](SO3CF3)2 (M = Rh, Ir; E = 1,4-Dicyanobenzene and 1,4-Dicyano-2-butene)
Author	Moonsik Kim, Jaekyun Chin, Jaejung Ko*
Keywords
Abstract	Hydrocarbon solution of (PPh3)2(CO)MOSO2CF3 (M= Rh, Ir) reacts rapidly with 1,4-dicyanobenzene or 1,4-dicyano-2-butene to yield dinuclear metal complexes [(PPh3)2(CO)M(μ -dicyanobenzene)M(CO)(PPh3)2](SO3CF3)2 (Ⅰ: M = Rh; Ⅱ: M = Ir) or [(PPh3)2(CO)M(μ -dicyano-2-benzene)M(CO)(PPh3)2](SO3CF3)2 (Ⅲ: M = Rh; Ⅳ: M = Ir), respectively. Compounds Ⅰ, Ⅱ, Ⅲ, and Ⅳ were characterized by 1H-NMR, 31P-NMR, and infrared spectrum. Dichloromethane solution of Ⅱ and Ⅳ reacts with H2 and I2 to yield oxidative addition complexes [(PPh3)2(CO)IrX2(μ-E)X2Ir(CO)(PPh3)2] (SO3CF3)2 (Ⅴ; E = 1,4-dicyanobenzene, X2 = H2; Ⅵ : E = 1,4-dicyano-2-butene, X2 = H2; Ⅶ; E = 1,4-dicyanobenzene, X2 = I2). All metal complexes are bridged by the cyanide groups. Compounds Ⅴ, Ⅵ, and Ⅶ are characterized by conventional methods.
Page	556 - 559
Full Text	PDF

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