Absorption spectra and the nature of complexes in the polyvinyl alcohol-nickel (II) chloride system

被引：4

作者：

Babin P.A. ^{[1
]}

Gavrilov A.V. ^{[1
]}

Trofimova L.A. ^{[1
]}

机构：

[1] Khabarovsk State Pedagogical University, Khabarovsk 680000

来源：

Journal of Applied Spectroscopy | 2006年 / 73卷 / 1期

关键词：

Absorption spectra; Bandpass filtering of signals; Complexation; Nickel(II) chloride; Polyvinyl alcohol;

D O I：

10.1007/s10812-006-0051-y

中图分类号：

学科分类号：

摘要：

We have used electronic spectroscopy in the 160-1100 nm range to study the polyvinyl alcohol-nickel(II) chloride system. Based on the results obtained, we hypothesize formation of mixed-ligand complexes of the type [Ni(H 2O)6-nCln]2-n (n = 0, 1,..., 5) in the polyvinyl alcohol matrix. Transformation of the coordination sphere as the NiCl2 concentration changes is apparent both in the region of the d-d transition bands (350-1100 nm) and in the region of the charge transfer bands (160-250 nm). We propose assigning the absorption bands separated by mathematical treatment to complexes of specific compositions. ©2006 Springer Science+Business Media, Inc.

引用

页码：151 / 153

页数：2

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