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

N. K. Singh; P. Tripathi; M. K. Bharty; A. K. Srivastava; Sanjay Singh; R. J. Butcher

doi:10.1016/j.poly.2010.03.005

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

N. K. Singh, P. Tripathi, M. K. Bharty, A. K. Srivastava, Sanjay Singh, R. J. Butcher

Research output: Contribution to journal › Article › Research › peer-review

19 Citations (Scopus)

Abstract

The ligand N′-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H₂mcph), having NNS donor sequence, has been found to form [Ni(Hmcph)₂]·CH₂Cl₂·0.5C₆H₆ and [Mn(Hmcph)₂]·2H₂O 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 P over(1, ̄) 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.

Original language	English
Pages (from-to)	1939-1945
Number of pages	7
Journal	Polyhedron
Volume	29
Issue number	8
DOIs	https://doi.org/10.1016/j.poly.2010.03.005
Publication status	Published - 27 May 2010
Externally published	Yes

Keywords

Crystal structure
Ni(II) and Mn(II) complexes
Thiocarbohydrazide

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10.1016/j.poly.2010.03.005

Cite this

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

abstract = "The ligand N′-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H2mcph), having NNS donor sequence, has been found to form [Ni(Hmcph)2]·CH2Cl2·0.5C6H6 and [Mn(Hmcph)2]·2H2O 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 P over(1,{\= }) 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.",

keywords = "Crystal structure, Ni(II) and Mn(II) complexes, Thiocarbohydrazide",

author = "Singh, {N. K.} and P. Tripathi and Bharty, {M. K.} and Srivastava, {A. K.} and Sanjay Singh and Butcher, {R. J.}",

year = "2010",

month = may,

day = "27",

doi = "10.1016/j.poly.2010.03.005",

language = "English",

volume = "29",

pages = "1939--1945",

journal = "Polyhedron",

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T1 - Ni(II) and Mn(II) complexes of NNS tridentate ligand N′-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H2mcph)

T2 - Synthesis, spectral and structural characterization

AU - Singh, N. K.

AU - Tripathi, P.

AU - Bharty, M. K.

AU - Srivastava, A. K.

AU - Singh, Sanjay

AU - Butcher, R. J.

PY - 2010/5/27

Y1 - 2010/5/27

N2 - The ligand N′-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H2mcph), having NNS donor sequence, has been found to form [Ni(Hmcph)2]·CH2Cl2·0.5C6H6 and [Mn(Hmcph)2]·2H2O 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 P over(1, ̄) 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.

AB - The ligand N′-[(2-methoxyphenyl)carbonothioyl]pyridine-2-carbohydrazide (H2mcph), having NNS donor sequence, has been found to form [Ni(Hmcph)2]·CH2Cl2·0.5C6H6 and [Mn(Hmcph)2]·2H2O 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 P over(1, ̄) 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.

KW - Crystal structure

KW - Ni(II) and Mn(II) complexes

KW - Thiocarbohydrazide

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JO - Polyhedron

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