Two two-dimensional supramolecular copper(II) and cobalt(III) complexes derived from a new quinazoline-type ligand: Syntheses, structures, and spectral, thermal, electrochemical and antimicrobial activity studies

被引：32

作者：

Chai, Lan-Qin ^{[1
]}

Tang, Li-Jian ^{[1
]}

Zhang, Kong-Yan ^{[1
]}

Zhang, Jian-Yu ^{[1
]}

Zhang, Hong-Song ^{[2
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Gansu, Peoples R China

[2] Lanzhou Univ, Hosp 2, Lanzhou 730030, Gansu, Peoples R China

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 2017年 / 31卷 / 11期

关键词：

antimicrobial activity; crystal structures; cyclic voltammetry; EPR; metal complexes; spectroscopic studies; SCHIFF-BASE LIGAND; EFFECTIVE CORE POTENTIALS; CRYSTAL-STRUCTURE; CU(II) COMPLEXES; MOLECULAR CALCULATIONS; NICKEL(II) COMPLEXES; DFT CALCULATIONS; AQUEOUS-SOLUTION; METAL-COMPLEXES; DNA-BINDING;

D O I：

10.1002/aoc.3786

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two two-dimensional supramolecular copper(II) and cobalt(III) complexes, Cu(L-1)(2) (1; HL1 = 2-hydroxy-3-methoxybenzaldehyde oxime) and [Co(L-2)(2)](2)2CH(3)COOCH(2)CH(3) (2; HL2 = 1-(2-{[(E)-3-methoxy-2-hydroxybenzylidene]amino}phenyl)ethanone oxime), have been synthesized via complexation of Cu(II) nitrate trihydrate and Co(II) acetate tetrahydrate with HL. A plausible reaction mechanism for the formation of HL1 is proposed. HL was synthesized and characterized using infrared, H-1 NMR and C-13 NMR spectra, as well as elemental analysis. Complexes 1 and 2 were investigated using single-crystal X-ray diffraction and have a 2:1 ligand-to-metal ratio. Different geometric features of both complexes are observed. In their crystal structures, 1 and 2 form infinite two-dimensional structures and 2 forms a three-dimensional supramolecular framework. Electron paramagnetic resonance spectra of 1 and 2 were also investigated. Moreover, thermal and electrochemical properties and antimicrobial activity of 2 were also studied. In addition, the calculated HOMO and LUMO energies show the character of complex 1.

引用

页数：13