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Thermodynamics of formation of cadmium dicarboxylate and carboxylate mixed complexes with benzimidazole

Abstract

Thermodynamic parameters of the mixed complexing of cadmium propionate, butyrate, valerate, succinate, maleinate and malate with benzimidazole in 20 % aqUeous-ethanol solution of 0.1 M KNO/sub 3/ are studied using polarographic method. It is shown that stability of mixed complexes of cadmium carboxylates with benzimidazole is connected with the process enthalpy and is determined by covalency of the metal-carboxylate bond. Increasing length of hydrocarbon chain of acyl group of monobasic acids hampers amine coordination with central complexing agent (..delta..S<0). The presence of dicarboxylate-ion in the inner coordination sphere decreases the enthalpy and increases the entropy of the process (..delta..S>0).
Authors:
Kharitonov, G V; Bolotov, V M; Kharitonova, R I [1] 
  1. Voronezhskij Tekhnologicheskij Inst. (USSR)
Publication Date:
Jan 01, 1980
Product Type:
Journal Article
Reference Number:
AIX-12-584049; EDB-81-046981
Resource Relation:
Journal Name: Koord. Khim.; (USSR); Journal Volume: 6:8
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CADMIUM COMPLEXES; FORMATION HEAT; AQUEOUS SOLUTIONS; BENZIMIDAZOLES; CARBOXYLIC ACID SALTS; ENTROPY; ETHANOL; MEDIUM TEMPERATURE; POLAROGRAPHY; POTASSIUM NITRATES; ALCOHOLS; ALKALI METAL COMPOUNDS; AZOLES; COMPLEXES; DISPERSIONS; ENTHALPY; HETEROCYCLIC COMPOUNDS; HYDROXY COMPOUNDS; IMIDAZOLES; MIXTURES; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POTASSIUM COMPOUNDS; REACTION HEAT; SOLUTIONS; THERMODYNAMIC PROPERTIES; 400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987); 400201 - Chemical & Physicochemical Properties
OSTI ID:
6603787
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: KOKHD
Submitting Site:
INIS
Size:
Pages: 1190-1192
Announcement Date:
Mar 01, 1981

Citation Formats

Kharitonov, G V, Bolotov, V M, and Kharitonova, R I. Thermodynamics of formation of cadmium dicarboxylate and carboxylate mixed complexes with benzimidazole. USSR: N. p., 1980. Web.
Kharitonov, G V, Bolotov, V M, &amp; Kharitonova, R I. Thermodynamics of formation of cadmium dicarboxylate and carboxylate mixed complexes with benzimidazole. USSR.
Kharitonov, G V, Bolotov, V M, and Kharitonova, R I. 1980. "Thermodynamics of formation of cadmium dicarboxylate and carboxylate mixed complexes with benzimidazole." USSR.
@misc{etde_6603787,
title = {Thermodynamics of formation of cadmium dicarboxylate and carboxylate mixed complexes with benzimidazole}
author = {Kharitonov, G V, Bolotov, V M, and Kharitonova, R I}
abstractNote = {Thermodynamic parameters of the mixed complexing of cadmium propionate, butyrate, valerate, succinate, maleinate and malate with benzimidazole in 20 % aqUeous-ethanol solution of 0.1 M KNO/sub 3/ are studied using polarographic method. It is shown that stability of mixed complexes of cadmium carboxylates with benzimidazole is connected with the process enthalpy and is determined by covalency of the metal-carboxylate bond. Increasing length of hydrocarbon chain of acyl group of monobasic acids hampers amine coordination with central complexing agent (..delta..S<0). The presence of dicarboxylate-ion in the inner coordination sphere decreases the enthalpy and increases the entropy of the process (..delta..S>0).}
journal = []
volume = {6:8}
journal type = {AC}
place = {USSR}
year = {1980}
month = {Jan}
}