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A One-Dimensional Coordination Polymer Based on Novel Radical Anion Ligand Generated In Situ: Notable Magnetic and Luminescence Properties

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posted on 2008-05-07, 00:00 authored by Guo-Ping Yong, Shu Qiao, Zhi-Yong Wang
A one-dimensional Zn(II) radical anion coordination polymer, [ZnCl(obip)]n (Hobip = 2,3′-biimidazo[1,2-a]pyridin-2′(3′H)-one) (1) was synthesized by a hydrothermal reaction between Zn(ClO4)2·6H2O and hydrochloride salt of imidazo[1,2-a]pyridin-2(3H)-one, in which the radical anion ligand ([obip]•−) was generated in situ by aldol condensation and then deprotonation. The compound 1 presents strong antiferromagnetic coupling between paramagnetic radical species and notable greenish yellow-red fluorescence emission.