Mononuclear gallium(III) complexes based on salicylaldoximes: Synthesis, structure and spectroscopic characterization
Mononuclear gallium(III) complexes based on salicylaldoximes: Synthesis, structure and spectroscopic characterization
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DOI：
10.1016/j.poly.2009.04.039
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发表时间：
2009-10-13
期刊：
影响因子：
2.6
通讯作者：
Papaefstathiou, Giannis S.
中科院分区：
文献类型：
--
作者：
Birnara, Christiana;Kessler, Vadim G.;Papaefstathiou, Giannis S.
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.
