New rhenium-tin cluster adds palladium phosphine groups across Re-Sn bonds

被引：35

作者：

Adams, RD ^{[1
]}

Captain, B ^{[1
]}

Johansson, M ^{[1
]}

Smith, JL ^{[1
]}

机构：

[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 02期

关键词：

D O I：

10.1021/ja0443169

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The new rhenium-tin complex Re2(CO)8(μ-SnPh2)2, 1 was obtained in 52% yield from the reaction of Re2(CO)8(μ-H)[μ-C(H)C(H)Bu] with Ph3SnH. Compound 1 contains two SnPh2 groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) Å [3.1902(4) Å], Re-Sn = 2.7429(4) Å [2.7445(4) Å], and 2.7675(4) [2.7682(5) Å]. A bis-Pd(PBut3) adduct of 1, Pd2Re2(CO)8(μ-SnPh2)2(PBut3)2, 2 was obtained from the reaction of 1 with Pd(PBut3)2. Compound 2 contains Pd(PBut3) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) Å and 2.8167(14) Å, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes. Copyright © 2005 American Chemical Society.

引用

页码：488 / 489

页数：2

共 28 条

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