An unprecedented bonding mode for potassium within a PCP-pincer palladium hydride-K-Selectride® complex

被引:10
|
作者
Boro, Brian J. [1 ]
Duesler, Eileen N. [1 ]
Goldberg, Karen I. [2 ]
Kemp, Richard A. [1 ,3 ]
机构
[1] Univ New Mexico, Dept Chem & Biol Chem, Albuquerque, NM 87131 USA
[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA
[3] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA
基金
美国国家科学基金会;
关键词
Tridentate ligands; Pd complexes; Crystal structure; Hydride ligands;
D O I
10.1016/j.inoche.2008.09.021
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of (PCP)i-PrPdCl and the commonly-used reductant K-Selectride (R) solution [K(sec-Bu3BH) in THF] does not yield a simple (PCP)i-PrPdH species, but rather an adduct of the Pd-H that contains bound K(sec-Bu3BH). This adduct has been characterized by X-ray crystallography and shown to be a centrosymmetric dimer in the solid state. The most unique feature of the structure is that the tri-coordinate K+ ion bonds only to the terminal palladium hydride and the two bridging boron hydrides. Despite being prepared in THF, no other donor ligands are bound to K+. This [H3K](+) bonding mode for K+ ions has not been previously reported. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:1426 / 1429
页数:4
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