Activation of CO2 and CS2 by (Me3Si)(i-Pr2P)NH and its zinc complex

被引:15
作者
Dickie, Diane A. [1 ]
Ulibarri-Sanchez, Raymond P., III [1 ,2 ]
Jarman, Paul J. [1 ]
Kemp, Richard A. [1 ,2 ]
机构
[1] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA
[2] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA
基金
美国国家科学基金会;
关键词
Main group compounds; X-ray crystallography; NMR; Synthesis; CS2; CO2; FRUSTRATED LEWIS PAIRS; CARBON-DIOXIDE BINDING; MOLECULAR-STRUCTURE; C-H; REACTIVITY; CRYSTAL; ALUMINUM;
D O I
10.1016/j.poly.2012.10.048
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of (Me3Si)(i-Pr2P)NH with ZnEt2 gives the complex {[(Me3Si)(i-Pr2P)N]ZnEt}(2), which was characterized by multinuclear NMR spectroscopy and X-ray crystallography. This Zn complex reacts with CO2 to give an adduct with the proposed formula of [(Me3Si)N(i-Pr2PCO2)]ZnEt that undergoes further transformation into the crystallographically characterized di-adduct [(Me3Si)N(i-Pr2PCO2)](2)Zn, in addition to a Zn-6 cluster containing both P-CO2 adducts and fragments of the isocyanate i-Pr2P-N=C=O. These reaction pathways have been separately observed in related group 2 and group 14 complexes, but not previously within the same molecule. Reactions with the related heteroallene CS2 were also examined. The free ligand (Me3Si)(i-Pr2P)NH reacts with CS2 to form a bright red, crystalline adduct (Me-3 Si)[P(i-Pr)(2)(CS2)]NH. This adduct was treated with ZnEt2 to provide the same product that is obtained from the reaction of {[(Me3Si)(i-Pr2P)N]ZnEt}(2) with CS2, proposed to be a dithiocarbamate complex, with the CS2 bound to the N instead of the P atom. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:92 / 98
页数:7
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