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

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2008年 / 11卷 / 12期

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

页码：1426 / 1429

页数：4

共 32 条

[1] Modularly designed transition metal PNP and PCP pincer complexes based on aminophosphines: Synthesis and catalytic applications [J].

Benito-Garagorri, David ;

Kirchner, Karl .

ACCOUNTS OF CHEMICAL RESEARCH, 2008, 41 (02) :201-213

[2] Synthesis and structural characterization of closo-exo, exo-nido, and pseudocloso group 1 carborane compounds of the C2B10 system [J].

Chui, K ;

Li, HW ;

Xie, ZW .

ORGANOMETALLICS, 2000, 19 (25) :5447-5453

[3] Insertion of molecular oxygen into a palladium(II) hydride bond [J].

Denney, MC ;

Smythe, NA ;

Cetto, KL ;

Kemp, RA ;

Goldberg, KI .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (08) :2508-2509

[4] Multifunctional ruthenium catalysts: A novel borohydride-stabilized polyhydride complex containing the basic, chelating diphosphine 1,4-bis(dicyclohexylphosphino)butane and its application to hydrogenation and murai catalysis [J].

Drouin, SD ;

Amoroso, D ;

Yap, GPA ;

Fogg, DE .

ORGANOMETALLICS, 2002, 21 (06) :1042-1049

[5] Insights into the Heck reaction with PCP pincer palladium(II) complexes [J].

Eberhard, MR .

ORGANIC LETTERS, 2004, 6 (13) :2125-2128

[6] Redox-induced collapse and regeneration of a pincer-type complex framework: A nonplanar coordination mode of palladium(II) [J].

Frech, CM ;

Shimon, LJW ;

Milstein, D .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (11) :1709-1711

[7]

Goldman A. S., 2004, ACS SYM SER, V885, P198

[8] Catalytic alkane metathesis by tandem alkane dehydrogenation olefin metathesis [J].

Goldman, AS ;

Roy, AH ;

Huang, Z ;

Ahuja, R ;

Schinski, W ;

Brookhart, M .

SCIENCE, 2006, 312 (5771) :257-261

[9] Isolation and reduction of sterically encumbered arylboron dihalides: Novel boranediyl insertion into C-C sigma-bonds [J].

Grigsby, WJ ;

Power, PP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (34) :7981-7988

[10] Alkali metal complexes of a phosphine-borane-stabilised carbanion: influence of co-ligands on structure [J].

Izod, Keith ;

Wills, Corinne ;

Clegg, William ;

Harrington, Ross W. .

DALTON TRANSACTIONS, 2007, (33) :3669-3675

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