期刊
JOURNAL OF COORDINATION CHEMISTRY
卷 71, 期 22, 页码 3748-3762出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00958972.2018.1521967
关键词
Ni(II) complex; asymmetric; Schiff base; crystal structure; DFT study
资金
- Payame Noor University
A new asymmetric tetradentate Schiff base, bis(5-methoxysalicylidene)-4-methylbenzene-1,2-diamine), H2L, and its Ni(II) complex were prepared and characterized using elemental analyses (CHN), FTIR, UV-Vis, H-1 NMR, and C-13{H-1} NMR spectroscopic techniques, and crystal structures of both were determined by X-ray crystallography. For both ligand and Ni(II) complex, density functional theory calculations to find geometry parameters, IR frequencies, electronic properties, and natural bond orbital analysis (NBO) were done with M062X method and Def2-TZVP basis set. All calculated data are consistent with the experiments. NBO data for the Ni(II) complex show that the main type of transition in UV-Vis is interligand charge-transfer, which is assigned as pi-pi*. [GRAPHICS] .
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