Four distinct anionic heterothiometallic W/S/Ag polymeric clusters directed by solvent-coordinated metal cations

详细信息    查看全文

• 作者：Jinfang Zhang ; ^{zjf260@jiangnan.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yuhang Liu ; Linpei Gong ; Guozhi Xu ; Chi Zhang ; ^{chizhang@jiangnan.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：W/S/Ag polymeric clusters ; Cation-directed synthesis ; 1-D anionic architectures ; Solvent-coordinated metal cations ; Crystal structures
• 刊名：Polyhedron
• 出版年：2016
• 出版时间：18 April 2016
• 年：2016
• 卷：109
• 期：Complete
• 页码：67-74
• 全文大小：2441 K

文摘

The solvent-coordinated metal cations as templates affecting the architectures of anionic heterothiometallic Mo(W)/S/Ag polymeric clusters was investigated. Four W/S/Ag polymeric clusters {[Tb(DMSO)₈][W₃S₁₂Ag₃]}_n (1, DMSO = dimethyl sulfoxide), {[Tb(DMF)₈][W₃S₁₂Ag₃]}_n (2, DMF = N,N′-dimethylformamide), {[Tb(NMP)₈][W₄S₁₆Ag₅]}_n (3, NMP = N-methyl-2-pyrrolidone) and {[Mg(NMP)₆][W₂S₈Ag₂]·2NMP}_n (4) with distinct 1-D anionic structures were obtained by the reactions of (NH₄)₂WS₄, AgI and M(NO₃)_x (M = Tb, x = 3; M = Mg, x = 2) in corresponding solvents (DMSO, DMF or NMP). 1–4 were determined by elemental analysis, IR, UV–Vis, thermogravimetric analysis, X-ray powder and single crystal diffractions. Directed by different solvent-coordinated trivalent terbium metal cations, 1 shows a 1-D anionic helical chain architecture; 2 exhibits a 1-D anionic zigzag chain with hexanuclear [W₃S₁₂Ag₃]³⁻ repeated units; 3 possesses another kind of 1-D anionic zigzag chain with the unique nonanuclear planar square-like [W₄S₁₆Ag₅]³⁻ repeated units. While induced by NMP-coordinated bivalent magnesium metal cation, 4 exhibits a 1-D anionic linear chain structure.