Structural and spectral perspectives of a novel thiosemicarbazone synthesized from di-2-pyridyl ketone and 4-phenyl-3-thiosemicarbazide

被引：36
作者：
Suni, V
Kurup, MRP [1 ]
Nethaji, M
机构：
[1] Cochin Univ Sci & Technol, Dept Appl Chem, Kochi, Kerala, India
[2] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2006年 / 63卷 / 01期
关键词：
di-2-pyridyl ketone; thiosemicarbazone; HMQC; COSY; crystal structure;
D O I：
10.1016/j.saa.2005.05.001
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A new thiosemicarbazone, HL is synthesized from di-2-pyridyl ketone and 4-phenyl-3-thiosemicarbazide and structurally and spectrochemically characterized. (1)H NMR, (13)C NMR, COSY, HMQC and IR spectra of the compound are studied and the proton magnetic resonance spectrum reveals some unprecedented observations. The thione form is predominant in the solid state, as supported by the crystal structure and IR data, while a thiol-thione equilibrium is proposed in the solution state by NMR studies. The compound crystallizes into a monoclinic lattice with space group C2/c and the ZE conformation is exhibited by the thiosemicarbazone. Intra- and intermolecular hydrogen-bonding interactions give rise to a two-dimensional packing in the crystal lattice. (c) 2005 Elsevier B.V. All rights reserved.
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收藏
页码：174 / 181
页数：8
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