Supramolecular self-assembly of two Cu(II) complexes with 1,2,4-triazole derivatives

Syntheses, crystal structures and magnetic properties

Lei Zhang, Yun Ling, Jing Li, Hongyan Gao

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Two two-dimensional coordination complexes, {[Cu4(BTM) 6(OPA)4]·4DMF·3H2O} n (1) and {[Cu(BDTM)(OH)](ClO4)·2H2O} n (2) (BTM = bis(1,2,4-triazol-1-yl)methane, BDTM = bis(3,5-dimethyl-1,2,4- triazol-1-yl)methane, OPA2- = ortho-phthalic dianion, DMF = N,N-dimethylformamide), were synthesized and structurally characterized. Each Cu(II) ion locates in a distorted square pyramidal geometry in 1, in which OPA2- ligands bridge Cu2+ ions along a axis to form a magnetic transmission chain and BTM ligands act as flexible spacers to construct the two-dimensional layer structure. In 2, each Cu2+ ion adopts tetra-coordination geometry to two hydroxyl groups and two triazolyl nitrogen atoms from two different BDTM ligands. Two hydroxyl groups bridge two Cu 2+ ions to form a rhombic diamond, and four BDTM ligands connect four diamonds to form a 36-membered macrocyclic structure with large channels along a axis. Magnetic properties revealed that both OPA2- and OH - mediate anti-ferromagnetic interactions between Cu2+ ions with J = - 0.06(3) and -301.9(2) cm-1 for 1 and 2, respectively.

Original languageEnglish
Pages (from-to)911-916
Number of pages6
JournalStructural Chemistry
Volume19
Issue number6
DOIs
Publication statusPublished - Dec 2008

Fingerprint

Self assembly
self assembly
Magnetic properties
Crystal structure
Ions
magnetic properties
Derivatives
crystal structure
Ligands
synthesis
ligands
Diamond
Methane
ions
Hydroxyl Radical
methane
diamonds
Dimethylformamide
Geometry
Coordination Complexes

Keywords

  • Crystal structure
  • Magnetic properties
  • Self-assembly

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Supramolecular self-assembly of two Cu(II) complexes with 1,2,4-triazole derivatives : Syntheses, crystal structures and magnetic properties. / Zhang, Lei; Ling, Yun; Li, Jing; Gao, Hongyan.

In: Structural Chemistry, Vol. 19, No. 6, 12.2008, p. 911-916.

Research output: Contribution to journalArticle

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