Organometallic rhodium (I) complexes with 1-alkylaminopyrazole ligands

被引：61
作者：
Esquius, G [1 ]
Pons, J [1 ]
Yáñez, R [1 ]
Ros, J [1 ]
机构：
[1] Univ Autonoma Barcelona, Fac Ciencias, Dept Quim, E-08193 Barcelona, Spain
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2001年 / 619卷 / 1-2期
关键词：
rhodium complexes; rhodium-amine complexes; 1-alkylaminopyrazoles; electrospray mass spectra;
D O I：
10.1016/S0022-328X(00)00662-8
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
New bidentate NN ' and tridentate NN 'N 1-alkylaminopyrazoles were synthesized and characterized by elemental analyses and spectroscopic methods. The reaction of [RhCl(cod)(2)] (cod = cycloocta-1,5-diene) with one equivalent of L 1-alkylaminopyrazoles afforded Rh2Cl2(L)(cod)(2) complexes (L = NN ' and NN 'N). These rhodium (I) compounds were studied by IR, H-1- and C-13-NMR and liquid mass (with electrospray and APCI interfaces) spectrometries. The H-1-NMR spectra and molar conductances of these complexes suggested the presence of 1:1 electrolyte species, [Rh(L)cod](+) [RhCl2(cod)](-), in solution. A combined electrospray and APCI liquid mass spectroscopy study confirmed the presence of both [Rh(L)cod](+) and [RhCl2(cod)](-) species in solution bur the existence of a neutral molecular form of complexes in solution could not be demonstrated. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：14 / 23
页数：10
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