Construction of Entangled Coordination Polymers Based on M2+ Ions, 4,4鈥?{[1,2-Phenylenebis(methylene)]bis(oxy)}dibenzoate and Different N-Donor Ligands

详细信息    查看全文

• 作者：Fei-Long Hu ; Wei Wu ; Peng Liang ; Yun-Qiong Gu ; Li-Gang Zhu ; Han Wei ; Jian-Ping Lang
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：November 6, 2013
• 年：2013
• 卷：13
• 期：11
• 页码：5050-5061
• 全文大小：727K
• 年卷期：v.13,no.11(November 6, 2013)
• ISSN：1528-7505

文摘

Reactions of several transition metal [M = Mn(II), Cu(II), Zn(II), Co(II)] salts with 4,4鈥?{[1,2-phenylenebis(methylene)]bis(oxy)}dibenzoic acid (H₂L) and auxiliary N-donor ligands afforded a series of entangled coordination frameworks, [Mn₂L₂(4,4鈥?bpy)₂][Mn₂L₂(H₂O)₂]路2H₂O (1), [CuL(bbm)]路0.5H₂O (2), [CuL(4,4鈥?bpy)_0.5] (3), [Zn₃L₂(4,4鈥?bpy)₂(HCOO)₂] (4), [ZnL(4,4鈥?bpy)]₂路H₂O (5), [Co₄L₄(bpp)₂]路DMF (6), [Co₂L₂(bbm)]₂路2H₂O (7), and [CoL(2,2鈥?bpy)] (8) [2,2鈥?bpy = 2,2鈥?bipyridine; 4,4鈥?bpy = 4,4鈥?bipyridine; bbm =1,4-di(1H-imidazol-1-yl)benzene; bpp = 1,3-bis(4-pyridyl)propane]. Their structures were characterized by elemental analysis, IR spectra, and TG analysis and further determined by single-crystal X-ray diffraction analysis. Compound 1 has an uncommon 2D_layer + 1D_chain 鈫?3D framework, while 2 displays a 2-fold interpenetrated 3D framework. Compounds 3鈥?b>5 show different entangled networks though they adopt the same 4,4鈥?bpy as the auxiliary ligand. Compounds 3 and 5 show 2-fold interpenetrated 2D networks, showing both polycatenane and polyrotaxane characters. Compound 4 possesses a 2D 鈫?3D polythreaded architecture. Compound 6 has a 3-fold interpenetrated 3D framework by using bpp as the second ligand. Compound 7 presents a 3D framework with a (4⁴路6²路8⁸路12)(4⁴路6²)(8) topology. Compound 8 presents a 1D helical chain constructed by linking [Co(2,2鈥?bpy)]²⁺ units via L ligands. The results provided an interesting insight into how metal ions, auxiliary N-donor ligands, and molar ratios of the components exert great impact on the formation of these entangled networks. The thermal and luminescent properties of 1鈥?b>8 in solid state at ambient temperature were also investigated.