Synthesis, characterization and chemical properties of 1-((E)-2-pyridinylmethylidene)semicarbazone manganese(II) and iron(II) complexes

被引：9

作者：

Garbelini, Ellery Regina ^{[1
]}

Martin, Maria da Graca M. B. ^{[1
]}

Back, Davi Fernando ^{[2
]}

Evans, David John ^{[3
]}

Mueller-Santos, Marcelo ^{[4
]}

Ribeiro, Ronny Rocha ^{[1
]}

Lang, Ernesto Schulz ^{[2
]}

Nunes, Fabio Souza ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Quim, BR-81531990 Curitiba, Parana, Brazil

[2] Univ Fed Santa Maria, Dept Quim, BR-97110900 Santa Maria, RS, Brazil

[3] John Innes Inst, Dept Biol Chem, Norwich NR4 7UH, Norfolk, England

[4] Univ Fed Parana, Dept Bioquim & Biol Mol, BR-81531980 Curitiba, Parana, Brazil

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2012年 / 1008卷

基金：

英国生物技术与生命科学研究理事会;

关键词：

Manganese; Iron; Semicarbazone; Crystal structure; EPR; Mass spectrometry; PENTAGONAL-BIPYRAMIDAL COMPLEXES; CRYSTAL-STRUCTURE; DIPERCHLORATE MONOHYDRATE; SEMICARBAZONES; THIOSEMICARBAZONES; CHLORIDE; EPR;

D O I：

10.1016/j.molstruc.2011.11.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Manganese(II) perchlorate and iron(II) chloride react with 2-formylpyridine semicarbazone (HCSpy) in boiling ethanol to produce [Mn-II(HSCpy)(2)](ClO4)(2)center dot C2H5OH and [(FeCl)-Cl-II(HSCpy)]Cl. The distorted octahedral manganese complex crystallizes in the triclinic system with space group P(-1). The ligand HSCpy is tridentate and is coordinated through two nitrogen and one oxygen atoms. Comparison of the bond distances with analogous transition metal complexes that have the same geometry revealed longer bonds for the manganese derivative, an outcome that correlates well with the radius of the metal ions. The iron(II) ion is tetracoordinated to one semicarbazone and one chloride. Mass spectrometry, conductivity measurements, Mossbauer, UV-VIS, FTIR and elemental analysis were all in accordance with the proposed composition and the plausible geometry of [FeCI(HSCpy)]CI. Mass spectrometry unequivocally detected the presence of the [FeCI(HSCpy)](+) ion with a m/z of 254.97 and intensity of 2 x 10(5). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：35 / 41

页数：7

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