TITLE:
The Structure of Insoluble Pectinates and Alginates of Polyvalent Metals Based on IR Spectra Data
AUTHORS:
Nelli Shalikovna Kajsheva, Alexander Shalikovich Kajshev, Anna Borisovna Samoryadova, Sergey Vasilyevich Volokitin, Christina Nicolaevna Gulbjakova, Ekaterina Alexandrovna Maslovskaya
KEYWORDS:
Coordination Compounds, Pectinates of Metals, Alginates of Metals, Structure, IR Spectra
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.8 No.5,
May
15,
2017
ABSTRACT: 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).