Carboxylate-assisted acylamide metal-organic frameworks: synthesis, structure, thermostability and luminescence studiesElectronic supplementary information (ESI) available CCDC reference numbers 877925-877928. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c2ce25602a

• Main Authors: Sun, Gong-ming, Huang, Hai-xiao, Tian, Xiao-zhao, Song, Yu-mei, Zhu, Yan, Yuan, Zi-jun, Xu, Wen-yuan, Luo, Ming-biao, Liu, Shu-juan, Feng, Xue-feng, Luo, Feng
• Format: Article
• Language: English
• ISSN: 1466-8033
• DOI: 10.1039/c2ce25602a

We present a series of carboxylate-assisted ethylamide metal-organic frameworks, namely, Zn 2 (L) 2 (oba) 2 ·2H 2 O( 1 , L = N1,N3-di(pyridin-3-yl)isophthalamide, H 2 oba = 4,4-oxybis(benzoic acid)), Zn 2 (L)(nap) 2 ·(DMF) 2.5 H 2 O( 2 , H 2 nap = 1,4-naphthalic acid, DMF = dimethylformamide), Cd(H 2 O)(L) (ip)·3H 2 O ( 3 , H 2 ip = 1,3-benzenedicarboxylic acid), Cd(L)(ip)·2H 2 O( 4 ). Polymer 1 crystallizes in the acentric Pca 2 1 space group and presents an unprecedented topology prototype of noz-4-Pcca that allows three-fold interpenetration. Polymer 2 is a 3D supramolecular net with a considerable solvent-accessible void that is occupied by DMF and water molecules. As for polymers 3 and 4 , the different formation of them is somewhat controlled by the concentration of initial materials such as 0.1 mmol Cd(NO 3 ) 2 , L, ip in 8 mL water used for 3 , 0.2 mmol Cd(NO 3 ) 2 , L, ip in 8 mL water used for 4 . In 3 , a highly rare 1D porous ladder-type structure is observed, and further through hydrogen bonds a 2D supramolecular net is built. By contrast, a 3D -Po net with two-fold interpenetration, based on a dinuclear Cd 2 (CO 2 ) 4 building block, is observed in 4 . Moreover, their thermostability and luminescence properties are explored. We present a series of carboxylate-assisted acylamide metal-organic frameworks.