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Anion Induced structural diversification from 0D to 3D

Anion Induced Structural Diversification from 0D to 3D

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中国化学会第八届全国配位化学会议

作者： Bo-Wen Qin Xiao-Ying Zhang Jing-Ping Zhang Department of Chemistry Northeast Normal University

Polymetallic complexes have attracted a focus of research due to their fascinating structures and potential applications in magnetism,*** the past few decades,many efforts have been paid to obtain new coordination polymers with multifunction,and great achievements for this field are created[1].However,the rational designs and syntheses of such complexes are still hugechallenges because the coordination process is acutely influenced by many factors,such as the kind of metal ions,ligands,ratio of metal salts and ligands,reaction solvent,reaction temperature and so on[2,3].Hence,the proper choice of ligands is crucially effective to obtain attractivearchitectures and intrinsic functions[4].Bis-tris propane(HL)including a NO donor site,is a flexible ligand and has been well-used to build high-nuclearity clusters[5].Based on thementioned above,we report the syntheses and structures of three new complexes CoCo(HL)Cl(MeOH)(1),[CoCo(HL)(CHCOO)(HCOO).HO](2),[CoCo(HL)(HCOO)(NO).2HO](3).As shown in Figure 1,compound 1 is the first 0D heptanuclear cluster based on *** Co(CHCOO).4HO to replace CoCl.6HO andchanging the solvent CHOH into DMF/CHOH,the 0D clusters are linked by HCOOions,forming 1D zigzag-like chain structure *** Co(NO).6HO was introduced,all coordination CHCOOions in compound 2 were substituted by HCOOions and the 1D chains were further bridged by HCOOions,forming 3D framework 3(Figure 1).Magnetic studied show that compound 1 exhibitsferrimagnetic *** compound 2 shows antiferromagnetic interactions and there exists spin canting in compound 3.

关键词： polymetallic complex anion structural diversification heptanuclear cluster

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