Mononuclear gallium(III) complexes based on salicylaldoximes: Synthesis, structure and spectroscopic characterization

被引：13
作者：
Birnara, Christiana [1 ]
Kessler, Vadim G. [2 ]
Papaefstathiou, Giannis S. [1 ]
机构：
[1] Univ Athens, Inorgan Chem Lab, Dept Chem, Panepistimiopolis 15771, Zografou, Greece
[2] Swedish Univ Agr Sci, Dept Chem, S-75007 Uppsala, Sweden
来源：
POLYHEDRON | 2009年 / 28卷 / 15期
关键词：
Crystal structure; Gallium(III) complexes; Mononuclear Ga(III) complexes; Oximato complexes; Six-coordinated Ga(III) complexes; SINGLE-MOLECULE MAGNET; MICROWAVE-ASSISTED SYNTHESIS; CRYSTAL-STRUCTURES; CHEMISTRY; CLUSTER; IRON(III); CORE; ANISOTROPY; DISTORTION; FAMILY;
D O I：
10.1016/j.poly.2009.04.039
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The reactions of Ga(acac)(3) with salicylaldoxime (saoH(2)) and methyl-salicylaldoxime (Me-saoH(2)) in dichloromethane/hexane afforded the complexes [Ga(acac)(saoH)(2)] (1) and [Ga(acac)(3)][Ga(acac)(MesaoH)(2)] (2), respectively, in high yields. The crystal structures of I and 2 have been determined by single-crystal X-ray crystallography. Both complexes are mononuclear with the Ga(Ill) atoms being in octahedral environments surrounded by two bidentate chelate R-saoH(-) and one bidentate chelate acac(-) ligands. A [Ga(acac)(3)] moiety has co-crystallized along with the methylsalicylaldoximato complex. Characteristic IR as well as NMR data are discussed in terms of the nature of bonding in the structures of the two complexes. H-1 and C-13 NMR data in CDCl3 indicate that the salicylaldoximato, complexes isomerize in solution. (C) 2009 Elsevier Ltd. All rights reserved.
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收藏
页码：3291 / 3297
页数：7
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