Two copper(II) complexes built from a novel redox-active bipyridinium dimer ligand and oxalate anions: Synthesis, crystal structure and magnetic properties

Yan Qiong Sun; Jie Zhang; Jing Lin Chen; Guo Yu Yang

doi:10.1002/ejic.200400232

Two copper(II) complexes built from a novel redox-active bipyridinium dimer ligand and oxalate anions: Synthesis, crystal structure and magnetic properties

Yan Qiong Sun, Jie Zhang^*, Jing Lin Chen, Guo Yu Yang

^*Corresponding author for this work

CAS - Fujian Institute of Research on the Structure of Matter

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

16 Citations (Scopus)

Abstract

The synthesis of a novel V-shaped redox-active bipyridinium dimer ligand, 2,6-bis(4′-pyridyl-1′-pyridiniumyl)pyrazine (Bpypr) dichloride and its copper complexes, (H₂BpYPr)[Cu₂(C₂O ₄)₄] (1) and {[(Bpypr)Cu₂(C₂O ₄)₃(H₂O)₂]·5H ₂O}_n (2), are described. Single-crystal X-ray diffraction studies confirm that complex 1 contains one V-shaped H₂Bpypr cation and two essentially planar [Cu(C₂O₄)₂] ^2- anions, which participate in two hydrogen bonds through the two N-H moieties. Complex 2 has a 1D zigzag chain structure composed of [Cu ₂(C₂O₄)₃]^2- units bridged by V-shaped Bpypr cations. The magnetic study revealed the occurrence of a weak ferromagnetic interaction within the dinuclear copper unit of complex 2. (

Original language	English
Pages (from-to)	3837-3841
Number of pages	5
Journal	European Journal of Inorganic Chemistry
Issue number	19
DOIs	https://doi.org/10.1002/ejic.200400232
Publication status	Published - 4 Oct 2004
Externally published	Yes

Keywords

Bipyridium dimer
Copper(II)
Oxalate
X-ray diffraction

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10.1002/ejic.200400232

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title = "Two copper(II) complexes built from a novel redox-active bipyridinium dimer ligand and oxalate anions: Synthesis, crystal structure and magnetic properties",

abstract = "The synthesis of a novel V-shaped redox-active bipyridinium dimer ligand, 2,6-bis(4′-pyridyl-1′-pyridiniumyl)pyrazine (Bpypr) dichloride and its copper complexes, (H2BpYPr)[Cu2(C2O 4)4] (1) and {[(Bpypr)Cu2(C2O 4)3(H2O)2]·5H 2O}n (2), are described. Single-crystal X-ray diffraction studies confirm that complex 1 contains one V-shaped H2Bpypr cation and two essentially planar [Cu(C2O4)2] 2- anions, which participate in two hydrogen bonds through the two N-H moieties. Complex 2 has a 1D zigzag chain structure composed of [Cu 2(C2O4)3]2- units bridged by V-shaped Bpypr cations. The magnetic study revealed the occurrence of a weak ferromagnetic interaction within the dinuclear copper unit of complex 2. (",

keywords = "Bipyridium dimer, Copper(II), Oxalate, X-ray diffraction",

author = "Sun, {Yan Qiong} and Jie Zhang and Chen, {Jing Lin} and Yang, {Guo Yu}",

year = "2004",

month = oct,

day = "4",

doi = "10.1002/ejic.200400232",

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pages = "3837--3841",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

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TY - JOUR

T1 - Two copper(II) complexes built from a novel redox-active bipyridinium dimer ligand and oxalate anions

T2 - Synthesis, crystal structure and magnetic properties

AU - Sun, Yan Qiong

AU - Zhang, Jie

AU - Chen, Jing Lin

AU - Yang, Guo Yu

PY - 2004/10/4

Y1 - 2004/10/4

N2 - The synthesis of a novel V-shaped redox-active bipyridinium dimer ligand, 2,6-bis(4′-pyridyl-1′-pyridiniumyl)pyrazine (Bpypr) dichloride and its copper complexes, (H2BpYPr)[Cu2(C2O 4)4] (1) and {[(Bpypr)Cu2(C2O 4)3(H2O)2]·5H 2O}n (2), are described. Single-crystal X-ray diffraction studies confirm that complex 1 contains one V-shaped H2Bpypr cation and two essentially planar [Cu(C2O4)2] 2- anions, which participate in two hydrogen bonds through the two N-H moieties. Complex 2 has a 1D zigzag chain structure composed of [Cu 2(C2O4)3]2- units bridged by V-shaped Bpypr cations. The magnetic study revealed the occurrence of a weak ferromagnetic interaction within the dinuclear copper unit of complex 2. (

AB - The synthesis of a novel V-shaped redox-active bipyridinium dimer ligand, 2,6-bis(4′-pyridyl-1′-pyridiniumyl)pyrazine (Bpypr) dichloride and its copper complexes, (H2BpYPr)[Cu2(C2O 4)4] (1) and {[(Bpypr)Cu2(C2O 4)3(H2O)2]·5H 2O}n (2), are described. Single-crystal X-ray diffraction studies confirm that complex 1 contains one V-shaped H2Bpypr cation and two essentially planar [Cu(C2O4)2] 2- anions, which participate in two hydrogen bonds through the two N-H moieties. Complex 2 has a 1D zigzag chain structure composed of [Cu 2(C2O4)3]2- units bridged by V-shaped Bpypr cations. The magnetic study revealed the occurrence of a weak ferromagnetic interaction within the dinuclear copper unit of complex 2. (

KW - Bipyridium dimer

KW - Copper(II)

KW - Oxalate

KW - X-ray diffraction

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DO - 10.1002/ejic.200400232

M3 - Article

AN - SCOPUS:6344277901

SN - 1434-1948

SP - 3837

EP - 3841

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 19

ER -

Two copper(II) complexes built from a novel redox-active bipyridinium dimer ligand and oxalate anions: Synthesis, crystal structure and magnetic properties

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Keywords

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