Estimation of the dipole moments of the excited state of di(2-methyl-6-chlorophenyl)carbazone and its Co(II), Ni(II) and Zn(II) complexes from the effect of solvent on their ultraviolet absorption spectra

被引：1

作者：

Dodamani, Ashok F. ^{[1
]}

Phaniband, Mohammedshafi A. ^{[1
]}

Dhumwad, Shreedhar D. ^{[1
]}

机构：

[1] Karnatak Univ, Karnatak Sci Coll, Dept Chem, Dharwad 580001, Karnataka, India

来源：

JOURNAL OF THE SERBIAN CHEMICAL SOCIETY | 2009年 / 74卷 / 06期

关键词：

carbazone; electric dipole moments; dielectric constants; pi ->pi* transition; EMISSION-SPECTROSCOPY; SCHIFF-BASES; MOLECULES; SYSTEM; VN;

D O I：

10.2298/JSC0906641D

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Di(2-methyl-6-chlorophenyl)carbazone (2M6CPC) and its Co(II), Ni(II) and Zn(II) complexes were synthesized and characterized by magnetic moment, and infrared and (1)H-NMR spectral measurements. The solvent effect in a series of polar and non-polar solvents of varying dielectric constants and refractive indices was estimated by recording the electronic spectra (S1 band) of the above compounds. The data was used to determine the magnitude and direction of the electric dipole moments in the first electronically excited state. The results indicate that the observed band systems in these compounds may be attributed to a pi ->pi* transition.

引用

页码：641 / 650

页数：10

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