A Series of Four-Connected Entangled Metal鈥揙rganic Frameworks Assembled from Pamoic Acid and Pyridine-Containing Ligands: Interpenetrating, Self-Penetrating, and Supramolecular Isomerism

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• 作者：Suna Wang ; Ruirui Yun ; Yanqiang Peng ; Qingfu Zhang ; Jing Lu ; Jianmin Dou ; Junfeng Bai ; Dacheng Li ; Daqi Wang
• 刊名：Crystal Growth & Design
• 出版年：2012
• 出版时间：January 1, 2012
• 年：2012
• 卷：12
• 期：1
• 页码：79-92
• 全文大小：1522K
• 年卷期：v.12,no.1(January 1, 2012)
• ISSN：1528-7505

文摘

Five novel compounds, {[Ni(PA)(bpe)(H₂O)₂]路DMF}_n (1), {[Zn(PA)(bpe)]路DMF}_n (2), {[Zn(PA)(bpe)]路2DMF路CH₃OH}_n (3), {[Cd₂(PA)₂(bpe)₂(H₂O)]路3.5H₂O}_n (4), {[Ni₂(PA)₂(bpp)₂(H₂O)₃]路2DMF}_n (5), based on pamoic acid (H₂PA) (bpe = 1,2-bi(4-pyridyl)ethane, bpp = 1,3-bi(4-pyridyl)propane) have been synthesized. In such a system, both the PA^{2鈥?/sup> anion ligand and dipyridyl ligands act as bipodal linkers, connecting the metal centers in square or tetrahedral geometries into 4-connected topologies with different entangled modes: 3-fold interpenetrating CdSO₄ net (65.8) (1), roto-translational [2 + 2] interpenetrating diamond pseudosupramolecular isomers (2 and 3), 3-fold interpenetrating (6.74.8)(64.7.8) (4) and (6.85)(64.82) net with both 2-fold interpenetrating and self-penetrating characters (5), respectively. The formation of unique penetrating frameworks was investigated in detail. Gas adsorption and photoluminescent properties of the compounds have also been explored.}