Construction of Ag(I)鈥揕n(III) Heterometallic Coordination Polymers Based on Binuclear Ag2(DSPT)2 (H2DSPT = 4鈥?(2,4-Disulfophenyl)-2,2鈥?6鈥?鈥?terpyridine) Rings and Ln(I

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• 作者：Rui-Ling Chen ; Xue-Yun Chen ; Sheng-Run Zheng ; Jun Fan ; Wei-Guang Zhang
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：October 2, 2013
• 年：2013
• 卷：13
• 期：10
• 页码：4428-4434
• 全文大小：615K
• 年卷期：v.13,no.10(October 2, 2013)
• ISSN：1528-7505

文摘

Four new 4d鈥?f heterometallic coordination polymers, namely, {[LnAg(DSPT)(mBDC)(H₂O)₂]路H₂O}_n [Ln = Sm, (1); Ln = Er, (2); H₂DSPT = 4鈥?(2,4-disulfophenyl)-2,2鈥?6鈥?鈥?terpyridine); H₂mBDC = 1,3-benzenedicarboxylic acid], {[CeAg(DPST)(mBDC)(H₂O)₂]路H₂O}_n (3), and {[TbAg₃(DPST)₂(INC)₂(H₂O)]}_n [HINC = isonicotinic acid, (4)], have been successfully synthesized under hydrothermal conditions and structurally characterized. The four components, including Ln(III) ions, Ag(I) ions, and the two organic ligands, are successfully incorporated into a single framework. They are all heterometallic complexes based on two kinds of molecular building blocks (MBBs), the Ag₂(DSPT)₂ ring (MBB I) and Ln₂(COO)₂ dimeric unit (MBB II). Complexes 1 and 2 are isostructural and exhibit a 2D network constructed by MBBs I and II, and further linked by Ag路路路蟺 interactions to a 3D supramolecular framework. Complexes 3 and 4 are 3D frameworks with sqc-21 and sqc-495 topologies by considering MBB I and II as nodes and coordination bonds/Ag路路路O interactions as linkers. Complexes 1鈥?b>4 represent rare examples of 4d鈥?f coordination polymers containing two kinds of organic ligands. Moreover, thermal gravimetric analysis and luminescence properties studies of selected complexes were also investigated.