Syntheses, structures, and properties of Ni(II) complexes with 5,5′-bis(4-halogenphenyl)diazo-dipyrromethane

被引:11
|
作者
Yin, Zhenming [1 ]
Yan, Ying [1 ]
Sun, Shipeng [1 ]
Wang, Wuyan [1 ]
机构
[1] Tianjin Normal Univ, Coll Chem, Tianjin Key Lab Struct & Performance Funct Mol, Tianjin 300387, Peoples R China
关键词
Diazo-dipyrromethane; Metal complex; Azo-hydrazone tautomerism; C-H center dot center dot center dot Ni interaction; HOMOCHIRAL M-HELIX; C-H; SPECTRAL CHARACTERIZATION; AZO DYES; ZN-II; NI-II; COORDINATION; LIGANDS; DESIGN; CYTOTOXICITY;
D O I
10.1080/00958972.2012.663493
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Ni(II) complexes with 5,5'-bis(4-halogenphenyl)diazo-dipyrromethane have been synthesized and characterized by X-ray crystallography. All the complexes have similar crystal structures in which Ni(II) is square-planar by coordinating to two pyrrole and two azo nitrogen atoms. The azo-pyrroles of the ligands can be converted to the hydrazone tautomer after complexing nickel. Moreover, the C-H center dot center dot center dot Ni interaction played an important role in directing self-assembly of the complexes. The UV-Vis spectra of the complexes showed great difference with the metal complexes of pyrrol-2-imine.
引用
收藏
页码:865 / 874
页数:10
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