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Syntheses, Crystal Structures and Antimicrobial Property of Schiff Base Copper(II) Complexes

Shun-Feng Yu, Xiao-Yang Qiu, Shu-Juan Liu


Four new copper(II) complexes, [CuL1(μ1,1-N3)]n (1), [CuL1(μ1,3-NCS)]n (2), [Cu(HL2)2](SCN)2 (3) and [Cu(L2)2] (4), where L1 and L2 are 2-((2-(dimethylamino)ethylimino)methyl-4,6-difluorophenolate and 2,4-difluoro-6-((3-morpholinopropylimino)methyl)phenolate, respectively, and HL2 is 2-((2-(dimethylammonio)ethylimino)methyl-4,6-difluorophenolate, were synthesized and characterized by elemental analysis, IR and UV-vis spectroscopy. The structures for the complexes were further confirmed by single crystal X-ray structure determination. Complexes 1 and 2 are polymeric copper(II) complexes, with the Cu atoms in square pyramidal coordination. Complexes 3 and 4 are mononuclear copper(II) complexes, with the Cu atoms in square planar coordination. The complexes were assayed for their antimicrobial properties.


Schiff base; copper complex; crystal structure; antimicrobial property

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