Effects of methyl substituent on the charge-transfer complexations of dicarbazolylalkanes with p-chloranil, tetracyanoethylene and tetracyanoquinodimethane

被引：6

作者：

Asker, Erol ^{[1
]}

Uzkara, Ece ^{[2
]}

Zeybek, Orhan ^{[2
]}

机构：

[1] Balikesir Univ, Dept Chem Educ, TR-10100 Balikesir, Turkey

[2] Balikesir Univ, Dept Phys, TR-10145 Cagis, Balikesir, Turkey

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2011年 / 79卷 / 05期

关键词：

1; n-Di(3-methylcarbazolyl)alkanes; p-Chloranil; Tetracyanoethylene; Tetracyanoquinodimethane; CT complexes; Enthalpy and entropy of complexation; DONOR-ACCEPTOR COMPLEXES; ELECTRON-AFFINITIES; CARBAZOLE; TETRANITROMETHANE; PHOTOLUMINESCENCE; STABILITY; FLUORENE; PHASE;

D O I：

10.1016/j.saa.2011.05.047

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Series of 1,n-dicarbazolylalkanes and 1,n-di(3-methylcarbazolyl)alkanes (where n=1-5) were synthesized and the molar extinction coefficients, equilibrium constants, enthalpies, and entropies of their charge-transfer (CT) complexes with the pi-acceptors p-chloranil, tetracyanoethylene, and tetracyanoquinodimethane were investigated. 1,n-Di(3-methylcarbazolyl)alkanes formed CT complexes with higher equilibrium constants, more negative enthalpies and entropies than 1,n-dicarbazolylalkanes. Vibrational spectra of CT complexes of one of the donor molecules (1.4-dicarbazolylbutane) with all three acceptors were compared. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1731 / 1738

页数：8

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