DIHYDROGEN COMPLEXES IN CATALYSIS - ISOTOPE EXCHANGE-REACTIONS

被引:71
作者
ALBENIZ, AC [1 ]
HEINEKEY, DM [1 ]
CRABTREE, RH [1 ]
机构
[1] YALE UNIV,STERLING CHEM LAB,NEW HAVEN,CT 06511
关键词
D O I
10.1021/ic00019a012
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Dihydrogen complexes [CpRu(CO)(PR3)(eta-2-H-2)]X (R = Ph (1), Cy (2); X = BF4-, CF3SO3-), [Ru(dppe)H-2(eta-2-H-2)]BF4 (3), and [Ir(bq)(PPh3)H-2(eta-2-H-2)]SbF6 (5) were tested as catalysts for H/D exchange between ROH and D2. Complex 5 is the most efficient, while 3 is moderately active and 1 and 2 are essentially inactive. Maximum activity arises when an M-H group is cis to a coordination site capable of binding both H-2 and ROH. The relevance of these results to the mechanism of H/D exchange in hydrogenase is also discussed.
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页码:3632 / 3635
页数:4
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