Ni(II) and Mn(II) complexes of NNS tridentate ligand N′-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H2mcph): Synthesis, spectral and structural characterization

被引：21
|
作者：
Singh, N. K. [1 ]
Tripathi, P. [1 ]
Bharty, M. K. [1 ]
Srivastava, A. K. [1 ]
Singh, Sanjay [2 ]
Butcher, R. J. [3 ]
机构：
[1] Banaras Hindu Univ, Dept Chem, Varanasi 221005, Uttar Pradesh, India
[2] Indian Inst Sci Educ & Res Mohali, Chandigarh 160019, India
[3] Howard Univ, Dept Chem, Washington, DC 20059 USA
来源：
POLYHEDRON | 2010年 / 29卷 / 08期
关键词：
Thiocarbohydrazide; Ni(II) and Mn(II) complexes; Crystal structure; COORDINATION CHEMISTRY; COPPER(II) COMPLEXES; NICKEL(II) COMPLEXES; METAL-COMPLEXES; IRON(III); ZINC(II); CRYSTAL; 2-BENZOYLPYRIDINE; MANGANESE(II); HYDRAZONES;
D O I：
10.1016/j.poly.2010.03.005
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The ligand N'-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H(2)mcph), having NNS donor sequence, has been found to form [Ni(Hmcph)(2)]center dot CH(2)Cl(2 center dot)0.5C(6)H(6) and [Mn(Hmcph)(2)]center dot 2H(2)O which have been characterized by spectroscopic and spectrometric techniques including magnetic susceptibility measurements and single crystal X-ray of both complexes. The compounds crystallize in the triclinic and monoclinic systems with the space group Pi and P2(1)/c, respectively with a distorted octahedral geometry about the M(II) center. The ligand is coordinated through the ring nitrogen, hydrazinic N and thione sulfur. The hydrazinic nitrogen coordinates with a shorter M-N distance than the ring nitrogen and the bond lengths in the chelate ring systems are intermediate between single and double bond distances, suggesting considerable delocalization of charge. (c) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1939 / 1945
页数：7
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