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Titolo:
Conductance study of the thermodynamics of Tl+ ion complexes with different 18-membered crown ethers in binary dimethylformamide-acetonitrile mixtures
Autore:
Shamsipur, M; Khayatian, G;
Indirizzi:
Razi Univ, Dept Chem, Kermanshah, Iran Razi Univ Kermanshah IranRazi Univ, Dept Chem, Kermanshah, Iran
Titolo Testata:
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
fascicolo: 1-2, volume: 39, anno: 2001,
pagine: 109 - 113
SICI:
1388-3127(200102)39:1-2<109:CSOTTO>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENTHALPY-ENTROPY COMPENSATION; MACROCYCLE INTERACTION; KINETIC DATA; METAL COMPLEXES; THALLIUM; 1,10-DIAZA-18-CROWN-6; TRANSITION; CATIONS; ANIONS; SODIUM;
Keywords:
Tl+-18-crown ether complexation; conductance; stability; thermodynamics; mixed solvent;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Shamsipur, M Razi Univ, Dept Chem, Kermanshah, Iran Razi Univ KermanshahIran niv, Dept Chem, Kermanshah, Iran
Citazione:
M. Shamsipur e G. Khayatian, "Conductance study of the thermodynamics of Tl+ ion complexes with different 18-membered crown ethers in binary dimethylformamide-acetonitrile mixtures", J INCL P MA, 39(1-2), 2001, pp. 109-113

Abstract

A conductance study of the interaction between Tl+ ion and 18-crown-6 (18C6), dicyclohexano-18-crown-6 (DC18C6), benzo-18-crown-6 (B18C6), diaza-18-crown-6 (DA18C6), dibenzyldiaza-18-crown-6 (DBzDA18C6) and hexaaza-18-crown-6 (HA18C6) in dimethylformamide-acetonitrile mixtures was carried out at various temperatures. The formation constants of the resulting 1:1 complexes were determined from the molar conductance-mole ratio data and found to vary in the order HA18C6 > DA18C6 > DBzDA18C6 > 18C6 > DC18C6 > B18C6. The enthalpy and entropy of the complexation reactions were determined from the temperature dependence of the formation constants.

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Documento generato il 28/03/20 alle ore 23:07:18