摘要
用付里叶变换红外光谱法(FTIR)测定了分别以NaOH和Ca(OH)2作为碱化剂合成的聚合氯化铝铁(PAFCNa,PAFCCa)的中红外光谱。结合分子动力学对弗雷德盐的模拟分析,本文解析了PAFCCa的中红外光谱并提出:PAFCCa中2150 cm-1峰为配位于弗雷德盐层间水分子的组合振动模式。PACCa或PAFCCa中1610,1630 cm-1共轭双峰可解释为:弗雷德盐层间结构中分别配位于Al(Ⅲ)与Ca(Ⅱ)的水分子的变形υ-H2O振动。
Mid-IR spectra of polyaluminum ferric chloride（PAFCNa and PAFCCa）,polyaluminum chloride（PACNa and PACCa）,polyferric chloride（PFCNa and PFCCa）,synthesized respectively with NaOH or Ca（OH）2 as basicity dose,were studied by Fourier Transform Infrared Spectroscopy（FTIR）.Combining with the molecular dynamics simulation analysis for Friedel＇s salt of literatures,this paper analyzes the infrared spectrum of the PAFCCa and put forward： the 2150 cm-1 peak of PAFCCa is showed as the combination of water molecules vibration mode in Friedel＇s salt layers.1610 and 1630 cm-1 conjugate twin peaks in PACCa or PAFCCa can be explained as the deformation of υ-H2O vibrations of water molecules of Friedel＇s salt layers coordinated with Al（Ⅲ） and Ca（Ⅱ）,respectively.
出处
《矿物学报》
CAS
CSCD
北大核心
2012年第3期353-360,共8页
Acta Mineralogica Sinica
基金
贵州省科学技术基金项目(黔科合J字[2008]2231号)
贵州省优秀科技教育人才省长专项资金项目([2009]04号)
贵州省高层次人才科研条件特助经费项目(TZJF[2009]18号)
