Aminoborane σ Complexes: Significance of Hydride Co-ligands in Dynamic Processes and Dehydrogenative Borylene Formation

被引：26

作者：

Addy, David A. ^{[1
]}

Bates, Joshua I. ^{[1
]}

Kelly, Michael J. ^{[1
]}

Riddlestone, Ian M. ^{[1
]}

Aldridge, Simon ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Inorgan Chem Lab, Oxford OX1 3QR, England

来源：

ORGANOMETALLICS | 2013年 / 32卷 / 06期

基金：

加拿大自然科学与工程研究理事会; 英国工程与自然科学研究理事会;

关键词：

AMINE-BORANES; RUTHENIUM COMPLEX; BOND METATHESIS; X-RAY; METAL; COORDINATION; BORON; IRIDIUM; HYDROBORATION; CHEMISTRY;

D O I：

10.1021/om400040q

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Systems of the type [(p-cym)Ru(PR3)(H)-((H2BNPr2)-Pr-i)](+) (R = Cy, Ph) can be synthesized from (p-cym)Ru-(PR3)Cl-2 and (H2BNPr2)-Pr-i/Na[BAr4f] and are best formulated as (hydrido)rutheniurn kappa(1)-aminoborane complexes. VT-NMR measurements have been used to probe the sigma-bond metathesis process leading to Ru-H/H-B exchange, yielding an activation barrier of Delta G(double dagger) = 7.5 kcal mol(-1) at 161 K. Moreover, in contrast to the case for related non-hydride-containing systems, reactivity toward alkenes constitutes a viable route to a metal borylene complex via sacrificial hydrogenation.

引用

页码：1583 / 1586

页数：4

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