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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Synthesis, spectral, crystal structure, thermal behavior, antimicrobial and DNA cleavage potential of two octahedral cadmium complexes: A supramolecular structure
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Synthesis, spectral, crystal structure, thermal behavior, antimicrobial and DNA cleavage potential of two octahedral cadmium complexes: A supramolecular structure

机译:两个八面体镉络合物的合成,光谱,晶体结构,热行为,抗菌剂和DNA切割潜力:超分子结构

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Two new cadmium(II) complexes with the formula of CdL2(NCS)(2) and CdL2(N-3)(2) (in which L is 2,2-dimethyl-N,N'-bis-(3-phenyl-allylidene)-propane-1,3-diamine) have been synthesized and characterized by elemental analysis, molar conductivity measurements, FT/IR, UV-Visible, H-1 and C-13 NMR spectra and X-ray studies. The crystal structure analysis of CdL2(NCS)2 indicated that it crystallizes in orthorhombic system with space group of Pbca. Two Schiff base ligands are bonded to cadmium(II) ion as N-2-donor chelate. Coordination geometry around the cadmium ion was found to be partially distorted octahedron. The Cd-N-imine bond distances are found in the range of 2.363(2)-2.427(2) angstrom while the Cd-N-isothiocyanate bond distances are 2.287(2) angstrom and 2310(2) angstrom. The existence of C-H center dot center dot center dot pi and C-H center dot center dot center dot S interactions in the CdL2(NCS)(2) crystal leads to a supramolecular structure in its network. Then cadmium complexes were screened in vitro for their antibacterial and antifungal activities against two Gram-negative and two Gram-positive bacteria and also against Candida albicans as a fungus. Moreover, the compounds were subjected for DNA-cleavage potential by gel electrophoresis method. Finally thermo-gravimetric analysis of the complexes was applied for thermal behavior studies and then some thermo-kinetics activation parameters were evaluated. (C) 2014 Elsevier B.V. All rights reserved.
机译:具有CDL2(NCS)(2)(2)和CDL2(N-3)(2)配方的两个新的镉(II)配合物(其中L是2,2-二甲基-N,N'-BIS-(3-苯基) - allylidene) - 丙烷-1,3-二胺已经合成,其特征在于元素分析,摩尔电导率测量,FT / IR,UV可见,H-1和C-13 NMR光谱和X射线研究。 CDL2(NCS)2的晶体结构分析表明它在具有PBCA的空间组的正晶体系中结晶。将两个Schiff碱配体与镉(II)离子键合,作为N-2-供体螯合物。发现镉离子周围的协调几何形状被部分扭曲的八面体扭曲。 CD-N-亚胺键距离在2.363(2)-2.427(2)埃焦射线的范围内,而CD-N-异硫氰酸酯键距离为2.287(2)埃和2310(2)埃。 C-H中心点中心点中心点PI和C-H中心点中心点中心点S的CDL2(NCS)(2)晶体中的C-H中心点中心点COT S相互作用导致其网络中的超分子结构。然后将镉复合物在体外筛选抗菌和抗真菌活性,针对两种革兰氏阴性和两种革兰氏阳性细菌,并且还针对念珠菌白醛植物作为真菌。此外,通过凝胶电泳法对化合物进行DNA切割潜力。最后对复合物的热重量分析应用于热行为研究,然后评估一些热动力学激活参数。 (c)2014 Elsevier B.V.保留所有权利。

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