Synthesis, crystal structures and magnetic studies of terephthalato-bridged binuclear nickel(II) complexes

Chang Seop Hong; Young Sin You

doi:10.1016/j.poly.2004.02.017

Synthesis, crystal structures and magnetic studies of terephthalato-bridged binuclear nickel(II) complexes

Chang Seop Hong, Young Sin You

Department of Chemistry

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

26 Citations (Scopus)

Abstract

Two binuclear compounds [Ni₂(pmdtn)₂(tp)(H ₂O)₂](ClO₄)₂(H₂O) ₄ (1) and [Ni₂(pmdtn)₂(tp)(N₃) ₂](H₂O)₄ (2) have been prepared by using the multibinding terephthalate (=tp) dianion and the tridentate capping ligand N,N,N^′,N^′,N″-pentamethyldiethyltriamine (=pmdtn) and have been characterized by X-ray crystallography and magnetic measurements. The crystal structures of both complexes show distorted octahedral geometries around the Ni(II) centers linked by the tp bridges in a bisbidentate fashion. The dihedral angles between the benzene rings and carboxylate groups correspond to 14.2° for 1 and 21.5° for 2. The intradimer distance of Ni⋯Ni through the tp ligand for 1 and 2 are 10.731 and 10.800 Å, respectively. The magnetic data reveal weak antiferromagnetic interactions transmitted by the tp bridge with J=-0.18 cm^-1 (1) and -0.02 cm ^-1 (2), which is explained by the structural parameters.

Original language	English
Pages (from-to)	1379-1384
Number of pages	6
Journal	Polyhedron
Volume	23
Issue number	8
DOIs	https://doi.org/10.1016/j.poly.2004.02.017
Publication status	Published - 2004 May 6

Keywords

Binuclear complexes
Crystal structures
Magnetic properties
Nickel(II) compounds
Terephthalate ligand

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2004.02.017

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@article{6a33682cf3cc4efbacc7938f41a76d27,

title = "Synthesis, crystal structures and magnetic studies of terephthalato-bridged binuclear nickel(II) complexes",

abstract = "Two binuclear compounds [Ni2(pmdtn)2(tp)(H 2O)2](ClO4)2(H2O) 4 (1) and [Ni2(pmdtn)2(tp)(N3) 2](H2O)4 (2) have been prepared by using the multibinding terephthalate (=tp) dianion and the tridentate capping ligand N,N,N′,N′,N″-pentamethyldiethyltriamine (=pmdtn) and have been characterized by X-ray crystallography and magnetic measurements. The crystal structures of both complexes show distorted octahedral geometries around the Ni(II) centers linked by the tp bridges in a bisbidentate fashion. The dihedral angles between the benzene rings and carboxylate groups correspond to 14.2° for 1 and 21.5° for 2. The intradimer distance of Ni⋯Ni through the tp ligand for 1 and 2 are 10.731 and 10.800 {\AA}, respectively. The magnetic data reveal weak antiferromagnetic interactions transmitted by the tp bridge with J=-0.18 cm-1 (1) and -0.02 cm -1 (2), which is explained by the structural parameters.",

keywords = "Binuclear complexes, Crystal structures, Magnetic properties, Nickel(II) compounds, Terephthalate ligand",

author = "Hong, {Chang Seop} and You, {Young Sin}",

note = "Funding Information: This work is supported by the Korea Research Foundation (Grant No. KRF-2003-003-C00073).",

year = "2004",

month = may,

day = "6",

doi = "10.1016/j.poly.2004.02.017",

language = "English",

volume = "23",

pages = "1379--1384",

journal = "Polyhedron",

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T1 - Synthesis, crystal structures and magnetic studies of terephthalato-bridged binuclear nickel(II) complexes

AU - Hong, Chang Seop

AU - You, Young Sin

N1 - Funding Information: This work is supported by the Korea Research Foundation (Grant No. KRF-2003-003-C00073).

PY - 2004/5/6

Y1 - 2004/5/6

N2 - Two binuclear compounds [Ni2(pmdtn)2(tp)(H 2O)2](ClO4)2(H2O) 4 (1) and [Ni2(pmdtn)2(tp)(N3) 2](H2O)4 (2) have been prepared by using the multibinding terephthalate (=tp) dianion and the tridentate capping ligand N,N,N′,N′,N″-pentamethyldiethyltriamine (=pmdtn) and have been characterized by X-ray crystallography and magnetic measurements. The crystal structures of both complexes show distorted octahedral geometries around the Ni(II) centers linked by the tp bridges in a bisbidentate fashion. The dihedral angles between the benzene rings and carboxylate groups correspond to 14.2° for 1 and 21.5° for 2. The intradimer distance of Ni⋯Ni through the tp ligand for 1 and 2 are 10.731 and 10.800 Å, respectively. The magnetic data reveal weak antiferromagnetic interactions transmitted by the tp bridge with J=-0.18 cm-1 (1) and -0.02 cm -1 (2), which is explained by the structural parameters.

AB - Two binuclear compounds [Ni2(pmdtn)2(tp)(H 2O)2](ClO4)2(H2O) 4 (1) and [Ni2(pmdtn)2(tp)(N3) 2](H2O)4 (2) have been prepared by using the multibinding terephthalate (=tp) dianion and the tridentate capping ligand N,N,N′,N′,N″-pentamethyldiethyltriamine (=pmdtn) and have been characterized by X-ray crystallography and magnetic measurements. The crystal structures of both complexes show distorted octahedral geometries around the Ni(II) centers linked by the tp bridges in a bisbidentate fashion. The dihedral angles between the benzene rings and carboxylate groups correspond to 14.2° for 1 and 21.5° for 2. The intradimer distance of Ni⋯Ni through the tp ligand for 1 and 2 are 10.731 and 10.800 Å, respectively. The magnetic data reveal weak antiferromagnetic interactions transmitted by the tp bridge with J=-0.18 cm-1 (1) and -0.02 cm -1 (2), which is explained by the structural parameters.

KW - Binuclear complexes

KW - Crystal structures

KW - Magnetic properties

KW - Nickel(II) compounds

KW - Terephthalate ligand

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Synthesis, crystal structures and magnetic studies of terephthalato-bridged binuclear nickel(II) complexes

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Keywords

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