Spectroscopic Studies of charge-transfer Complexation of Octathia-24-crown-8 with Iodine in Chloroform Solution

Shamsipur, M.; Samadi, N.; Irandoust, M.

Artykuł - szczegóły

Tytuł artykułu

Spectroscopic Studies of charge-transfer Complexation of Octathia-24-crown-8 with Iodine in Chloroform Solution

Autorzy

Shamsipur M. , Samadi N. , Irandoust M.

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

The charge-transfer complexation between octathia-24-crown-8 (OT24C8) and iodine in chloroform solution was studied spectrometrically at various temperatures. The molar absorptivities and formation constants of the resulting 1:1 complex were determined. The formation of the OT24C8-I2 complex was also confirmed by 1H NMR spectrometry. The enthalpy and entropy of the charge-transfer complexation were determined from the temperature dependence of the formation constant, as Delta H graduate = -31.0 + - 0.5 kJ mol-1 and Delta S graduate = -84 + - 6 J mol-1K-1.

Słowa kluczowe

charge-transfer complex OT24C8-I2 spectrophotometry 1H NMR thermodynamics

Wydawca

Polskie Towarzystwo Chemiczne

Czasopismo

Polish Journal of Chemistry

Rocznik

2004

Tom

Vol.78 /nr 11-12

Strony

1979--1986

Opis fizyczny

Bibliogr. 40 poz., rys.

Twórcy

autor

Shamsipur M.

Department of Chemistry, Razi University, Kermanshah, Iran

autor

Samadi N.

Department of Chemistry, Razi University, Kermanshah, Iran

autor

Irandoust M.

Department of Chemistry, Razi University, Kermanshah, Iran

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Typ dokumentu

Bibliografia

Identyfikator YADDA

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