Physicochemical studies of bioactive heterocycles of some novel imidazole derivatives as sensitive NLO materials

被引：19

作者：

Jayabharathi, Jayaraman ^{[1
]}

Thanikachalam, Venugopal ^{[1
]}

Srinivasan, Natesan ^{[1
]}

Jayamoorthy, Karunamoorthy ^{[1
]}

机构：

[1] Annamalai Univ, Dept Chem, Annamalainagar 608002, Tamil Nadu, India

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2011年 / 83卷 / 01期

关键词：

NMR; Emission kinetics; Chemisensors; NLO; HOMO-LUMO; NONLINEAR-OPTICAL PROPERTIES; HETEROAROMATIC RINGS; CHARGE-TRANSFER; PROTON-TRANSFER; COMPLEXES; CHROMIUM(VI); CRYSTAL; GROWTH;

D O I：

10.1016/j.saa.2011.08.039

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Some novel imidazole derivatives were developed as highly sensitive chemisensors for transition metal ions. A prominent fluorescence enhancement was found in the presence of transition metal ions such as Hg2+, Pb2+,Cu2+, Zn2+, Co2+ and Fe2+ and this was suggested to result from the suppression of radiationless transitions from the n-pi* state in the chemisensors. By OFT calculation HOMO LUMO energies were calculated, the electric dipole moment (mu) and the hyperpolarizability (beta) of the investigated molecules have been studied experimentally and also theoretically. These synthesized molecules were found to have microscopic non-linear optical (NLO) behaviour with non-zero tensor components. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：329 / 336

页数：8

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