Synthesis and characterisation of a series of Group 7 metal 2,2,2,2-dicarbonylbis(triorganophosphine)-arachno-2-metallatetraboranes, [M(CO)2L2(B3H8)] (M=Re, Mn);: crystal and molecular structures of [Re(CO)2(dppf)(B3H8)] and [Mn(CO)2(dppe)(B3H8)]

被引：9

作者：

Beckett, MA ^{[1
]}

Brassington, DS

Coles, SJ

Gelbrich, T

Hursthouse, MB

机构：

[1] Univ Coll N Wales, Dept Chem, Bangor LL57 2UW, Gwynedd, Wales

[2] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England

来源：

POLYHEDRON | 2003年 / 22卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

boron; carbonyl complexes; manganese; octahydrotriborate(2-); organophosphine ligands; rhenium; X-ray structures;

D O I：

10.1016/S0277-5387(03)00289-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Arachno-2-metallatetraboranes, [M(CO)(2)L-2(B3H8)] (M = Re, L = PPh3, P(C6H4Cl-4)(3), P(C6H4OMe-4)(3), P(CH2Ph)(3); M = Mn and Re, L = 1/2dppm, 1/2dppp, 1/2dppb, 1/2dppf; M = Mn, L = 1/2dppe), have been synthesised from reactions of [NBu4][B3H8] with fac, cis-[MBr(CO)(3)L-2.] under photolytic conditions. These compounds were characterised by NMR (H-1, B-11, P-31) and IR spectroscopy. [Mn(CO)(2)(dppe)(B3H8)] and [Re(CO)(2)(dppf)(B3H8)] were further characterised by single-crystal X-ray diffraction studies. These studies confirmed molecular Cs symmetry and a trans dicarbonyl arrangement. Similar reactions with the bis(monodentate) organophosphine complexes, mer, trans-[MnBr(CO)(3)L-2], did not yield isolatable arachno-2-metallatetraboranes. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1627 / 1632

页数：6

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