KINETICS AND MECHANISMS OF HOMOGENEOUS CATALYTIC REACTIONS .2. HYDROGENATION OF CYCLOHEXANE CATALYZED BY [RUH(CO)-(NCME)(2)(PPH(3))]BF4

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作者：
ROSALES, M
ALVARADO, Y
GALLARDO, N
RUBIO, R
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来源：
TRANSITION METAL CHEMISTRY | 1995年 / 20卷 / 03期
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O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Kinetic and mechanistic studies of the homogeneous hydrogenation of cyclohexane were carried out using the cationic complex [RuH(CO)(NCMe)(2)(PPh(3))(2)]BF4 as the catalyst precursor, which was very efficient under mild reaction conditions in xylene solution. The experimental rate law was found to be r = {K(1)K(2)k(3)/([MeCN] + K-1- (1 + K-2)[C6H10]}[Ru][C6H10][H-2], which became {K(2)k(3)/(1 + K-2)}[Ru][H-2] at high cyclohexane concentrations. The activation parameters were calculated. The kinetic data are consistent with a mechanism involving the oxidative addition of hydrogen as the rate-determining step of the catalytic cycle.
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页码：242 / 245
页数：4
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