Double addition of a 1,3-diyne to C2 on an Ru5 cluster gives a multi-branched C10 chain

被引：18

作者：

Adams, CJ

Bruce, MI ^{[1
]}

Skelton, BW

White, AH

机构：

[1] Univ Adelaide, Dept Chem, Adelaide, SA 5005, Australia

[2] Univ Western Australia, Dept Chem, Nedlands, WA 6907, Australia

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1999年 / 589卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

1,3-diyne; ruthenium; clusters; X-ray structures;

D O I：

10.1016/S0022-328X(99)00404-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reactions of the dicarbon-containing complex Ru-5(mu(5)-C-2)(mu-SMe)(2)(mu-PPh2)(2)(CO)(11) (1) with 1,4-diphenylbuta-1,3-diyne gave as the major products Ru-5{mu(5)-CCCPhC(C=CPh)} (mu(3)-SMe)(mu-SMe)(mu-PPh2)(2)(CO)(n) (n = 11 (6), 9 (8)) and Ru-5{mu(5)-CCC(C=CPh)CPh}(mu-PPh2)(2)(mu-SMe)(2)(CO)(10) (7), thermolysis of the latter also giving 8. Minor products were characterised as Ru-5{mu(5)-CC(SMe)C(C=CPh)CPh} (mu-PPh2)(2)(mu-SMe)(CO)(10) (9) (two isomers) and Ru-5{mu(4)-CC[C(C=CPh)CPh]C(C=CPh)CPh)(mu-PPh2)(2)(mu(3)-SMe)(2)(CO)(8) (10). The structures of 8, 9 and 10 were determined from single-crystal X-ray studies; 8 and 10 have 80 cluster valence electrons, two more than the expected number for an Mj cluster with six M-M bonds. Each has two Ru-Ru separations in excess of 3.0 Angstrom. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：213 / 221

页数：9

共 10 条

[1] Reactions of Ru5(μ5-C2)(μ-SMe)2(μ-PPh2)2(CO)11 with disubstituted alkynes C2R2 (R = Me, Ph) [J].