Construction of Coordination Polymers Based on Bent 4-Amino-3,5-bis(3-carboxyphenyl)-1,2,4-triazole Ligand: Diverse Structural Topology and Photoluminescent and Magnetic Properties

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• 作者：Baiyan Li ; Fen Yang ; Guanghua Li ; Dan Liu ; Qi Zhou ; Zhan Shi ; Shouhua Feng
• 刊名：Crystal Growth & Design
• 出版年：2011
• 出版时间：May 4, 2011
• 年：2011
• 卷：11
• 期：5
• 页码：1475-1485
• 全文大小：1595K
• 年卷期：v.11,no.5(May 4, 2011)
• ISSN：1528-7505

文摘

Ten coordination polymers, [Mn₉(L1)₈(OH)₂(H₂O)₂₁]_n (1), [Mn_3.5(L1)₃(OH)(H₂O)₈]_n (2), [Cu(L1)(H₂O)_1.375]_n (3), {Zn(L1)(DMF)[(CH₃)₂NH]_0.25}_n (4), [Zn₂(L1)₂(4,4鈥?bipy)(DMF)_0.5(H₂O)_0.5]_n (5), [Zn₂(L1)₂(bib)(H₂O)_6.75]_n (6), [Cd₂(L1)₂(H₂O)_7.5]_n (7), [Cd₂(L1)₂(H₂O)_7.5]_n (8), [Cd(L1)(bpp)]_n (9), and [Cd₂(L1)₂(bib)(H₂O)₆]_n (10) (L1 = 4-amino-3,5-bis(3-carboxyphenyl)-1,2,4-triazole, bib = 1,4-bis(imidazol)butane, bpp = 1,3-bi(4-pyridyl)propane), have been prepared and structurally characterized. In these compounds, L1 exhibits different coordination modes and conformations, constructing various architectures by bridging a variety of building units and adjusting the roles of different organic bases. Compound 1 presents a 3D diamond topology built by bridging rare Mn₉ clusters with L1. Compound 2 is a 1D chain structure. Compound 3 shows a unique 2D {4².6}₂{4⁴.6⁹.8²} topology by linking paddle-wheel SBU with L1. Compound 4 is a 1D double chain structure. Compound 5 presents an unusual 2D V₂O₅ net with {4².6³.8}{4².6} topology by linking 4,4鈥?bipy with the double chains constructed by L1 and Zn(II) atoms. Compound 6 exhibits a rare 3D coe topology with point (Schlafli) symbol for net: {4².6.10².12}{4².6}. Compound 7 presents an unusual 1D strap shaped structure. Compound 8 is a zero-periodic structure. Compound 9 shows an interesting 4-connected 2D interpenetrating net with point (Schlafli) symbol {4⁴.6²}. Compound 10 is a 1D 鈥淗鈥?shaped structure when it is viewed from the c axis direction. The luminescent properties of compounds 4鈭?b>7 and 9, and the magnetic properties of compound 1 have been investigated in the solid state.