Substituted groups-directed assembly of Cd(II) coordination polymers based on 5-R-1,3-benzenedicarboxylate and 4,4'-bis(1-imidazolyl)bibenzene: syntheses, structures and photoluminescent properties
Substituted groups-directed assembly of Cd(II) coordination polymers based on 5-R-1,3-benzenedicarboxylate and 4,4'-bis(1-imidazolyl)bibenzene: syntheses, structures and photoluminescent properties
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DOI：
10.1039/c2ce25677k
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发表时间：
2012-08
期刊：
影响因子：
3.1
通讯作者：
Hong-Jian Cheng;Hong‐Xi Li;Zhi‐Gang Ren;Chun-Ning Lü;Jingwen Shi;J. Lang
中科院分区：
文献类型：
--
作者：
Hong-Jian Cheng;Hong‐Xi Li;Zhi‐Gang Ren;Chun-Ning Lü;Jingwen Shi;J. Lang
Hydrothermal reactions of CdCl2·2.5H2O with 4,4'-bis(1-imidazolyl)bibenzene (bimb) and 1,3-benzenedicarboxylate (1,3-H2BDC), 5-methyl-1,3-benzenedicarboxylate (5-Me-1,3-H2BDC), 5-amino-1,3-benzenedicarboxylate (5-NH2-1,3-H2BDC), 5-hydroxy-1,3-benzenedicarboxylate (5-HO-1,3-H2BDC), 5-nitro-1,3-benzenedicarboxylate (5-NO2-H21,3-BDC), or 5-sulfo-1,3-benzenedicarboxylate (5-HSO3-1,3-H2BDC) resulted in the formation of six Cd(II) coordination polymers, [Cd(5-R-1,3-BDC)(bimb)]n (R = H (1), R = Me (2), R = NH2 (3), R = OH (4)), {[Cd2(H2O)(5-NO2-1,3-BDC)2(bimb)]·2H2O}n (5) and [Cd(5-SO3-1,3-HBDC)(bimb)]n (6). Compounds 1–6 were characterized by elemental analysis, IR, powder X-ray diffraction and single-crystal X-ray diffraction. 1–4 exhibit similar 3D frameworks in which 2D [Cd4(5-R-1,3-BDC)4]n (R = H, Me, NH2 and OH) layers are interlinked by bimb ligands. 5 has a two-fold interpenetrating 3D framework in which 1D [Cd2(5-NO2-1,3-BDC)2]n chains are interconnected by bimb ligands. 6 shows a 3D (3,5)-connected framework in which 2D [Cd2(5-SO3-1,3-HBDC)2]n networks are bridged by bimb ligands. The Schlafli symbols for these six 3D nets are (4·62)(4·66·83) (1–4), (42·6)(42·6·102·12) (5) and (4·6·8)(4·65·83·10) (6). The solid state photoluminescent properties of 1–6 were also investigated.
