Octahedral CuII and NiII complexes manifesting with N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide: Structural outlooks and spectral characteristics

• Authors: Amitabha Datta , Jui-Hsien Huang , Jack Clegg , Pei-Hsin Liu , Sheng-Jie Chuang
• Languages of publication: EN

Abstracts

EN

A tridentate hydrazone precursor, N′-[1-(pyridin-2-yl)ethylidene]acetohydrazide (L) (1:1 refluxed product of acetichydrazide and 2-acetylpyridine), produced two octahedral CuII and NiII derivatives, [CuL2]·NO3 (1) and [NiL2]·ClO4·H2O (2). Both are subjected to X-ray diffraction system, and structural investigation shows that the central metal atom (CuII or NiII) adopts a distorted octahedral geometry with N4O2 donor sets by coordination of a pair of independent hydrazone precursors. Besides X-ray study, IR and UV-vis spectra, thermal analysis and room temperature magnetic moments are utilized for establishing significant characteristics of both complexes. It is apparent that the M-Npyridine bonds are slightly longer than the M-Nimino bonds, Cu1-N1 and Cu1-N4 [2.300(2) and 2.038(2) Å] for 1 and Ni1-N1 and Ni1-N4 [2.075(2) and 2.084(1) Å] for 2, Cu1-N2 and Cu1-N5 [2.062(1) and 1.932(1) Å] for 1 and Ni1-N2 and Ni1-N5 [2.008(2) and 1.975(2) Å] for 2, respectively. As per our observation, the effective magnetic moment value (µeff) is found to be 1.77 B.M. for 1 and 3.06 BM for 2, respectively.

Keywords

EN

Copper(II); Nickel(II); Hydrazone; Spectral properties; Crystal structure

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2013
• Volume: 11
• Issue: 1
• Pages: 116-122

Dates

published

1 - 1 - 2013

online

24 - 10 - 2012

Contributors

author

Amitabha Datta

• National Changhua University of Education

author

Jui-Hsien Huang

• National Changhua University of Education

author

Jack Clegg

• The University of Queensland

author

Pei-Hsin Liu

• National Changhua University of Education

author

Sheng-Jie Chuang

• National Changhua University of Education

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Identifiers

DOI

10.2478/s11532-012-0141-z