Structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate

M. Sakhawat Hussain

doi:10.1016/S0020-1693(00)83578-1

Structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate

M. Sakhawat Hussain^*

^*Corresponding author for this work

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

19 Scopus citations

Abstract

The crystal structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate. [Ni(DACH)₂]Cl₂·2H₂O has been determined from single-crystal X-ray diffraction data measured on a CAD-4 diffractometer using graphite monochromatized Mo-K_α radiation. A full-matrix least-squares refinement with 1158 reflections gave a final R value of 5.0%. The compound crystallizes in the orthorhombic space group Pbca with a = 9.801(3), b = 11.690(4), c = 14.376(3) Å and Z = 4. The structure consists of discrete [Ni(DACH)₂]²⁺ cations, Cl^- anions and water of crystallization. The DACH moieties in the cation are in trans form and individual six- and five-membered chelate rings are in chair and half-boat configurations respectively. The octahedral coordination is prohibited because of the steric hindrance of the axial sites by the hydrogen-carbon backbone of the ligand. The site symmetry of the Ni(II) atom is D_2h, which is consistent with the magnetic, spectral and conductance properties of the complex. Our results show that Ni(II) always form four-coordinated planar complexes with mesocyclic diamines irrespective of their chelate ring conformations.

Original language	English
Pages (from-to)	227-232
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	69
Issue number	C
DOIs	https://doi.org/10.1016/S0020-1693(00)83578-1
State	Published - 1983
Externally published	Yes

Bibliographical note

Funding Information:
Financial support from the University of Petroleum and Minerals Grant CY/ORGOMTL/64 and a travel grant is gratefully acknowledgedT. he author is thankful to the UPM Data Processing Center for generous amount of computer time. Help from Mr. Mazhar Hasan in growing the crystals of the compound is acknowledged.

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/S0020-1693(00)83578-1

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title = "Structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate",

abstract = "The crystal structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate. [Ni(DACH)2]Cl2·2H2O has been determined from single-crystal X-ray diffraction data measured on a CAD-4 diffractometer using graphite monochromatized Mo-Kα radiation. A full-matrix least-squares refinement with 1158 reflections gave a final R value of 5.0\%. The compound crystallizes in the orthorhombic space group Pbca with a = 9.801(3), b = 11.690(4), c = 14.376(3) {\AA} and Z = 4. The structure consists of discrete [Ni(DACH)2]2+ cations, Cl- anions and water of crystallization. The DACH moieties in the cation are in trans form and individual six- and five-membered chelate rings are in chair and half-boat configurations respectively. The octahedral coordination is prohibited because of the steric hindrance of the axial sites by the hydrogen-carbon backbone of the ligand. The site symmetry of the Ni(II) atom is D2h, which is consistent with the magnetic, spectral and conductance properties of the complex. Our results show that Ni(II) always form four-coordinated planar complexes with mesocyclic diamines irrespective of their chelate ring conformations.",

author = "\{Sakhawat Hussain\}, M.",

note = "Funding Information: Financial support from the University of Petroleum and Minerals Grant CY/ORGOMTL/64 and a travel grant is gratefully acknowledgedT. he author is thankful to the UPM Data Processing Center for generous amount of computer time. Help from Mr. Mazhar Hasan in growing the crystals of the compound is acknowledged.",

year = "1983",

doi = "10.1016/S0020-1693(00)83578-1",

language = "English",

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pages = "227--232",

journal = "Inorganica Chimica Acta",

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T1 - Structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate

AU - Sakhawat Hussain, M.

N1 - Funding Information: Financial support from the University of Petroleum and Minerals Grant CY/ORGOMTL/64 and a travel grant is gratefully acknowledgedT. he author is thankful to the UPM Data Processing Center for generous amount of computer time. Help from Mr. Mazhar Hasan in growing the crystals of the compound is acknowledged.

PY - 1983

Y1 - 1983

N2 - The crystal structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate. [Ni(DACH)2]Cl2·2H2O has been determined from single-crystal X-ray diffraction data measured on a CAD-4 diffractometer using graphite monochromatized Mo-Kα radiation. A full-matrix least-squares refinement with 1158 reflections gave a final R value of 5.0%. The compound crystallizes in the orthorhombic space group Pbca with a = 9.801(3), b = 11.690(4), c = 14.376(3) Å and Z = 4. The structure consists of discrete [Ni(DACH)2]2+ cations, Cl- anions and water of crystallization. The DACH moieties in the cation are in trans form and individual six- and five-membered chelate rings are in chair and half-boat configurations respectively. The octahedral coordination is prohibited because of the steric hindrance of the axial sites by the hydrogen-carbon backbone of the ligand. The site symmetry of the Ni(II) atom is D2h, which is consistent with the magnetic, spectral and conductance properties of the complex. Our results show that Ni(II) always form four-coordinated planar complexes with mesocyclic diamines irrespective of their chelate ring conformations.

AB - The crystal structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate. [Ni(DACH)2]Cl2·2H2O has been determined from single-crystal X-ray diffraction data measured on a CAD-4 diffractometer using graphite monochromatized Mo-Kα radiation. A full-matrix least-squares refinement with 1158 reflections gave a final R value of 5.0%. The compound crystallizes in the orthorhombic space group Pbca with a = 9.801(3), b = 11.690(4), c = 14.376(3) Å and Z = 4. The structure consists of discrete [Ni(DACH)2]2+ cations, Cl- anions and water of crystallization. The DACH moieties in the cation are in trans form and individual six- and five-membered chelate rings are in chair and half-boat configurations respectively. The octahedral coordination is prohibited because of the steric hindrance of the axial sites by the hydrogen-carbon backbone of the ligand. The site symmetry of the Ni(II) atom is D2h, which is consistent with the magnetic, spectral and conductance properties of the complex. Our results show that Ni(II) always form four-coordinated planar complexes with mesocyclic diamines irrespective of their chelate ring conformations.

UR - https://www.scopus.com/pages/publications/0000432321

U2 - 10.1016/S0020-1693(00)83578-1

DO - 10.1016/S0020-1693(00)83578-1

M3 - Article

AN - SCOPUS:0000432321

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VL - 69

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EP - 232

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - C

ER -

Structure of bis(1,4-diazacycloheptane)nickel(II) chloride dihydrate

Abstract

Bibliographical note

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