Title:
Copper(I) and Copper(II) Halogeno Polymers with 2,1,3-benzothiazole: Variation of 1D and 2D Polymeric Structures as a Function of Reaction Conditions
Abstract:
The study of coordination polymers continues to be ofgreat interest in the context of their possibility to offer newfunctional materials with interesting magnetic, electrical oroptical properties. Much work has been done in theemployment of linear bidentate molecules as bridgingligands, because the dimensionality of the resultantpolymeric structures can be varied with the geometry ofmetal ion. Much less work has been carried out on the useof the non-linear bidentate bridging ligands; an interestingsuch ligand with a fixed bridging angle is 2,1,3-benzothiazole (btd). The present work describes theemployment of the non-chelating, bent potentially bridgingligand btd in the construction of copper(I) and copper(II)halogeno polymers. The complexes [CuCl2(btd)]n,[CuCl(btd)]n, [CuBr(btd)]n, [CuBr(btd)0.5]n, [CuI(btd)]n and[Cu2I2(btd)]n have been prepared and characterized bysingle-crystal and powder X-ray crystallography. Thecoordination polymers adopt 1D or 2D structuresdepending on the oxidation state of copper, thestoichiometry of the complexes, the nature of the anioniccoligand and the coordination (monodentate, bidentate) ofbtd. The magnetic properties of [CuCl2(btd)]n have alsobeen studied.
