Synthesis, structure and physico-chemical studies of Mn (II) complexes of salicylaldehyde derived semicarbazone and thiosemicarbazone

被引：0

作者：

Sharma, Navin Kumar ^{[1
]}

Sapna ^{[1
]}

Agarwal, Manoj ^{[2
]}

Kohli, Seema ^{[1
]}

Tiwari, B. ^{[3
]}

Gurtu, J. N. ^{[4
]}

Agarwal, Bhavna ^{[5
]}

机构：

[1] MMH Coll Ghaziabad, Dept Chem, Ghaziabad, India

[2] KNGD Coll Engn, Dept Chem, Modi Nagar, India

[3] Trident Coll Engn, Dept Chem, Ghaziabad, India

[4] Meerut Univ, Dept Chem, Meerut, Uttar Pradesh, India

[5] Int Coll Engn, Dept Chem, Ghaziabad, India

来源：

ORIENTAL JOURNAL OF CHEMISTRY | 2010年 / 26卷 / 01期

关键词：

Semicarbazone; thiosemicarbazone Ligand; Magnetic susceptibility electronic spectra IR; ESR;

D O I：

暂无

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Complexes of semicarbazone and thiosemicarbazone of salicylaldehyde with Mn(II) have been synthesized by ethanolic solution of 0.05 mole of MnCl2 center dot 4H(2)O and 0.1 mole of corresponding ligand (ie, semi and thiosemciarbazone). Crystal data are reported with variable coordination modes. The complexes have been characterized by various physico-chemical techniques, viz. magnetic susceptibility measurement, electronic, infra-red and electron spin resonance spectral studies. These complexes are found of the type of Mn (ligand)(2)X-2 {X = Cl-1, Br, So(4)(2-) and SCN-1}. All the complexes show a very good agreement with standard magnetic moment value of complexes having five unpaired spins at room temperature They show magnetic moments in the range of 5.93-6.03 BM at room temperature. Electronic spectra of the complexes display weak absorption bands in the range 18200-20400 cm(-1), 21060-25100 cm(-1), 24870-29860 cm(-1), 31300-33350 cm(-1) which are characteristics of octahedral geometry

引用

页码：103 / 108

页数：6

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