Crystal structure, characterization and magnetic properties of a 1D copper(II) polymer incorporating a Schiff base with carboxylate side arm

Journal of Chemical Sciences

MADHUSUDAN NANDY³  CÉDRIC DESPLANCHES4¹  CORRADO RIZZOLI²  SHYAMAPADA SHIT1³  SAMIRAN MITRA1³ 

[1] CNRS, ICMCB, UPR 9048, F-33600 Pessac, France$$;Università degli Studi di Parma, Dipartimento di Chimica, Parco Area delle Scienze 17/A, I-43124 PARMA, Italy$$;Department of Chemistry, Jadavpur University, Kolkata, West Bengal, 700 032, India$$

关键词: 1D copper(II) polymer;    Schiff base;    crystal structure;    electrochemistry;    EPR;    magnetic properties.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

A new 1D polymeric copper(II) complex [{Cu(L)$(CF_{3}COO)}2]_{n}$ has been synthesized using apotentially tetradentate Schiff base ligand, HL, ((E)-2-((pyridin-2-yl)methyleneamino)-5-chlorobenzoic acid)and characterized by different spectroscopic methods. Single crystal X-ray structural characterization revealsthat the side arm carboxylate group of the coordinated Schiff base exhibits a $μ_{1,3}$ -bridging mode and connectsthe neighbouring copper(II) ions leading to a zigzag 1D chain structure where the copper(II) ions displaydistorted square pyramidal geometries. Variable temperature magnetic susceptibility measurement reveals aweak antiferromagnetic exchange (J = −0.47±0.01 $cm_{−1}) prevails between copper(II) ions in the chainmediated by the bridging carboxylate group, is also supported by the room temperature EPR spectral study.Electrochemical property of the complex is also reported.

【 授权许可】

Unknown