Synthesis and Structure of Novel Dimethylcobalt(III) Complexes Containing Trimethylphosphine and Salicylaldiminato(N:O) Ligands
作者:Xiaoyan Li、Liye Huang、Hongjian Sun、Mu Li
DOI:10.1002/zaac.200500296
日期:2005.11
Dimethyl(salicylaldiminato[N:O])cobalt complexes [CoMe2(2-O-C6H1R1R2 R3-CH=NR4)L2] (L=PMe3) (1 - 6) have been prepared through the reaction of [CoMe3(PMe3)3] with the corresponding substituted salicylaldimine. The complexes were characterized with IR, 1H NMR, 13C NMR, 31P NMR and elemental analyses. The X-ray crystal structure of complex 1 shows an octahedral coordination of cobalt, with two equatorial
Synthesis, crystal structure, magnetic and redox properties of copper(II) complexes of N-alkyl(aryl) tBu-salicylaldimines
作者:Elham Safaei、Masoume Mohseni Kabir、Andrzej Wojtczak、Zvonko Jagličić、Anna Kozakiewicz、Yong-Ill Lee
DOI:10.1016/j.ica.2010.11.017
日期:2011.1
A series of novel copper(II) complexes, L 2 Cu with newly synthesized 3,5- Bu 2 t -salicylaldimine (or 5- Bu 2 t -salicylaldimine) ligands derived from 2,4-di-tert-butyl phenol (or 4-tert-butyl phenol) and alkyl (aryl) amines have been prepared and their spectroscopic (IR, UV–Vis, ESI-MS), X-ray, magnetic and redox properties have been investigated. The X-ray crystallography analysis shows that all
一系列新颖的铜(II)配合物,L 2 Cu与新合成的由2,4-二叔丁基苯酚(或已经制备了4-叔丁基苯酚)和烷基(芳基)胺,并研究了它们的光谱(IR,UV-Vis,ESI-MS),X射线,磁性和氧化还原性质。X射线晶体学分析表明,所有配合物均为单体,其铜(II)中心被酚盐氧和亚胺氮原子包围。因此,如在半乳糖氧化酶活性位点中所见,围绕铜原子的配位球是N 2 O 2。另外,所有配合物的几何构型为正方形平面或略微变形的正方形平面。除L 2 1 Cu是正交晶外,所有配合物的晶体系统均为单斜晶系。配合物磁化率的温度依赖性证实了配合物的单核结构。在循环伏安法实验过程中,Cu(II)配合物的氧化产生了相应的Cu(II)-苯氧基基团。
Komissarova, N. L.; Belostotskaya, I. S.; Shubina, O. V., Journal of Organic Chemistry USSR (English Translation), 1992, vol. 28, # 1, p. 157 - 159
作者:Komissarova, N. L.、Belostotskaya, I. S.、Shubina, O. V.、Grishina, E. A.、Ershov, V. V.
DOI:——
日期:——
Synthesis, spectroscopic and redox properties of a novel series of copper(II) complexes of N-alkyl-3,5--salicylaldimines. Generation of the directly coordinated Cu(II)–phenoxyl radical complexes
作者:Veli T. Kasumov、Fevzi Köksal、Ali Sezer
DOI:10.1016/j.poly.2005.04.003
日期:2005.7
A series of novel copper(II) complexes, X, with N-R-3,5-Bu-2'-salicylaldimines, derived from 3,5-Bu-2'-salicylaldehyde and alkyl-amines (RNH2) have been prepared and their spectroscopic (IR, UV-Vis, ESR), magnetic and redox reactivity are described. ESR spectral parameters and mu(eff) values suggest that complexes are magnetically diluted in the solid state. The CV of some X exhibits a dependence of Cu-II/Cu-I potentials on bulkiness R groups, but the ligand centered oxidation potentials are less influenced by the nature of R. In the chemical oxidation of X with 8-10-fold excess (NH4)(2)Ce(NO3)(6) in CHCl3 at 300 K, besides decreasing ESR signal of X, the appearance of a new broad lines centered at ca. g = 2.116-2.217 and radical signals (g = 2.0048 - 2.0086) assigned to new Cu-II centers and Cu(II)-phenoxyl radicals, respectively, were detected. UV-Vis spectra revealed new maxima at 630-790 nm for all oxidized X complexes and a very weak shoulder at ca. 800-830 nm for some of them. (c) 2005 Elsevier Ltd. All rights reserved.