Homobinuclear Ru-Ru and heterobinuclear Ru-Rh complexes with alkynyl and vinylidene ligands as molecular units
Homobinuclear Ru-Ru and heterobinuclear Ru-Rh complexes with alkynyl and vinylidene ligands as molecular units
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以炔基和亚乙烯基配体为分子单元的同双核 Ru-Ru 和异双核 Ru-Rh 配合物
DOI:
10.1139/v00-170
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发表时间:
2001
影响因子:
1.1
通讯作者:
Marta Martín
中科院分区:
文献类型:
--
作者:
H. Werner;P. Bachmann;Marta Martín
The chelate complex (RuCl2{κ 2 (P,O)-i-Pr2PCH2CH2OMe}2 )( 1) reacted, in the presence of CF3SO3Ag, with 1 equiv of C6H4(C;CH)2-p (4) to afford the mononuclear vinylidene compound (RuCl(C=CHC6H4-p-C;CH){κ 2 (P,O)-i- Pr2PCH2CH2OMe}2)(CF3SO3 )( 3). From 1 and 0.5 equiv of 4, the binuclear bis(vinylidene) complex (RuCl{κ 2 (P,O)-i- Pr2PCH2CH2OMe}2(C=CHC6H4-p-CH=C)RuCl{κ 2 (P,O)-i-Pr2PCH2CH2OMe}2)(CF3SO3)2 (6) was obtained. The related compound (RuCl{κ 2 (P,O)-i-Pr2PCH2CH2OMe}2(C=CHC6H4-m-CH=C)RuCl{κ 2 (P,O)-i-Pr2PCH2CH2OMe}2)(CF3SO3)2 (7) was prepared from 1, 0.5 equiv of C6H4(C;CH)2-m (5), and silver triflate. The reaction of 2 or 3 with (RhCl(P-i-Pr3)2)2 (8) in the molar ratio of 2:1 yields, by addition of the 14-electron fragment (RhCl(P- i-Pr3)2) to the uncoordinated C—C triple bond, the heterobinuclear complexes (RuCl{κ 2 (P,O)-i-Pr2PCH2CH2OMe}2(C=CHC6H4-m/p-C;CH)RhCl(P-i- Pr3)2)(CF3SO3 )( 9, 10) which slowly rearrange at room temperature to give the bis(vinylidene) isomers (RuCl{κ 2 (P,O)-i- Pr2PCH2CH2OMe}2(C=CHC6H4-m/p-CH=C)RhCl(P-i-Pr3)2)(CF3SO3 )( 11, 12).