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

Amitabha Datta, Jui-Hsien Huang, Jack K. Clegg, Pei Hsin Liu, Sheng Jie Chuang

Research output: Contribution to journalArticle

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Abstract

A tridentate hydrazone precursor, N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide (L) (1:1 refluxed product of acetichydrazide and 2-acetylpyridine), produced two octahedral Cu II and Ni II derivatives, [CuL 2]·NO 3 (1) and [NiL 2]·ClO 4·H 2O (2). Both are subjected to X-ray diffraction system, and structural investigation shows that the central metal atom (Cu II or Ni II) adopts a distorted octahedral geometry with N 4O 2 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-N pyridine bonds are slightly longer than the M-N imino 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 (μ eff) is found to be 1.77 B.M. for 1 and 3.06 BM for 2, respectively.

Original languageEnglish
Pages (from-to)116-122
Number of pages7
JournalCentral European Journal of Chemistry
Volume11
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1

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Hydrazones
Magnetic moments
Pyridine
Thermoanalysis
Metals
Derivatives
X ray diffraction
X rays
Atoms
Geometry
Temperature
2-acetylpyridine
pyridine

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

@article{7eee9d8d67294495a93c5fe232ba70cf,
title = "Octahedral Cu II and Ni II complexes manifesting with N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide: Structural outlooks and spectral characteristics",
abstract = "A tridentate hydrazone precursor, N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide (L) (1:1 refluxed product of acetichydrazide and 2-acetylpyridine), produced two octahedral Cu II and Ni II derivatives, [CuL 2]·NO 3 (1) and [NiL 2]·ClO 4·H 2O (2). Both are subjected to X-ray diffraction system, and structural investigation shows that the central metal atom (Cu II or Ni II) adopts a distorted octahedral geometry with N 4O 2 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-N pyridine bonds are slightly longer than the M-N imino bonds, Cu1-N1 and Cu1-N4 [2.300(2) and 2.038(2) {\AA}] for 1 and Ni1-N1 and Ni1-N4 [2.075(2) and 2.084(1) {\AA}] for 2, Cu1-N2 and Cu1-N5 [2.062(1) and 1.932(1) {\AA}] for 1 and Ni1-N2 and Ni1-N5 [2.008(2) and 1.975(2) {\AA}] for 2, respectively. As per our observation, the effective magnetic moment value (μ eff) is found to be 1.77 B.M. for 1 and 3.06 BM for 2, respectively.",
author = "Amitabha Datta and Jui-Hsien Huang and Clegg, {Jack K.} and Liu, {Pei Hsin} and Chuang, {Sheng Jie}",
year = "2013",
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language = "English",
volume = "11",
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journal = "Central European Journal of Chemistry",
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publisher = "Central European Science Journals",
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Octahedral Cu II and Ni II complexes manifesting with N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide : Structural outlooks and spectral characteristics. / Datta, Amitabha; Huang, Jui-Hsien; Clegg, Jack K.; Liu, Pei Hsin; Chuang, Sheng Jie.

In: Central European Journal of Chemistry, Vol. 11, No. 1, 01.01.2013, p. 116-122.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Octahedral Cu II and Ni II complexes manifesting with N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide

T2 - Structural outlooks and spectral characteristics

AU - Datta, Amitabha

AU - Huang, Jui-Hsien

AU - Clegg, Jack K.

AU - Liu, Pei Hsin

AU - Chuang, Sheng Jie

PY - 2013/1/1

Y1 - 2013/1/1

N2 - A tridentate hydrazone precursor, N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide (L) (1:1 refluxed product of acetichydrazide and 2-acetylpyridine), produced two octahedral Cu II and Ni II derivatives, [CuL 2]·NO 3 (1) and [NiL 2]·ClO 4·H 2O (2). Both are subjected to X-ray diffraction system, and structural investigation shows that the central metal atom (Cu II or Ni II) adopts a distorted octahedral geometry with N 4O 2 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-N pyridine bonds are slightly longer than the M-N imino 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 (μ eff) is found to be 1.77 B.M. for 1 and 3.06 BM for 2, respectively.

AB - A tridentate hydrazone precursor, N′-[1-(pyridin-2-yl)ethylidene] acetohydrazide (L) (1:1 refluxed product of acetichydrazide and 2-acetylpyridine), produced two octahedral Cu II and Ni II derivatives, [CuL 2]·NO 3 (1) and [NiL 2]·ClO 4·H 2O (2). Both are subjected to X-ray diffraction system, and structural investigation shows that the central metal atom (Cu II or Ni II) adopts a distorted octahedral geometry with N 4O 2 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-N pyridine bonds are slightly longer than the M-N imino 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 (μ eff) is found to be 1.77 B.M. for 1 and 3.06 BM for 2, respectively.

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