The Structure of Insoluble Pectinates and Alginates of Polyvalent Metals Based on IR Spectra Data

作     者：Nelli Shalikovna Kajsheva Alexander Shalikovich Kajshev Anna Borisovna Samoryadova Sergey Vasilyevich Volokitin Christina Nicolaevna Gulbjakova Ekaterina Alexandrovna Maslovskaya 

作者机构：Pyatigorsk Medical and Pharmaceutical Institute—A Branch of Federal State-Funded Educational Institution of Higher Vocational Education “Volg SMU” Pyatigorsk Russia 

出 版 物：《American Journal of Analytical Chemistry》 (美国分析化学（英文）)

年 卷 期：2017年第8卷第5期

页      面：334-344页

学科分类：07[理学] 0703[理学-化学] 

主　　题：Coordination Compounds Pectinates of Metals Alginates of Metals Structure IR Spectra 

摘      要：Using the method of IR spectroscopy it was ascertained that in pectinates and alginates of polyvalent metals the coordination bonds between cations Pb2+, Cu2+, Zn2+, Cr3+, Mn2+, Fe2+, Co2+, Ni2+ and the oxygen atoms of carboxyl and hydroxyl groups, pyranose cycle and glycosidic linkage of polyuronides, the water molecules are formed. It was also ascertained that Cu2+ cations form asymmetrical structures with carboxyl groups of polyuronides (monodentate ligands) and cations of other metals—symmetrical structures with carboxyl groups of polyuronides (bidentate ligands).