Extended Sandwich Molecules Displaying Direct Metal-Metal Bonds

被引：13

作者：

Barik, Subrat Kumar ^{[1
]}

Chowdhury, Monojit Ghosal ^{[1
]}

De, Susmita ^{[2
]}

Parameswaran, Pattiyil ^{[2
]}

Ghosh, Sundargopal ^{[1
]}

机构：

[1] Indian Inst Technol Madras, Dept Chem, Chennai 600036, Tamil Nadu, India

[2] Natl Inst Technol Calicut, Dept Chem, Kozhikhode 673607, India

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2016年 / 28期

关键词：

Sandwich complexes; Binuclear metallocenes; Iridium; Rhodium; Boron; Density functional calculations; CP-ASTERISK; OCTAHYDROTRIBORATE(1-) ANION; STRUCTURAL-CHARACTERIZATION; BORYLENE COMPLEXES; DIRHODIUM ANALOGS; CRYSTAL-STRUCTURE; D-BLOCK; CHEMISTRY; METALLABORANES; ZN;

D O I：

10.1002/ejic.201600888

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of [Cp*IrCl2](2) (Cp* = pentamethylcyclopentadienyl) with Li[BH3(SePh)] at room temperature led to the isolation of a dimetala analogue of hexaborane(10), nido-[(Cp*Ir)(mu-SePh)(2)Ir{(Cp*Ir)SePh}B4H8] (1). Solid-state X-ray structure analysis of 1 showed an extended sandwich molecule with two iridium atoms between Cp* and a [B4Ir] ring. Further, in an effort to synthesize the Rh analogue of 1 under similar reaction conditions, we isolated arachno-[{(Cp*Rh)(mu-SePh)(3)}Rh(mu-SePh)B3H6] (2), a rhodium analogue of tetraboarane(10) in which the {RhB3} unit shows geometric equivalence with a metal pi-allyl {MC3} species. Ir complex 1, having an Ir-Ir bond, can be considered similar to the dizinc sandwich complex [Cp*Zn-ZnCp*] in terms of the valence electron count at the metal centers.

引用

页码：4546 / 4550

页数：5

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