Bhattacharya, Biswajit and Dey, Rajdip and Pachfule, Pradip and Banerjee, Rahul and Ghoshal, Debajyoti (2012) Four 3D Cd(II) based metal organic hybrids with different N,N'-donar spacers : syntheses, characterizations and selective gas adsorption properties. Crystal Growth & Design, 13 (2). pp. 731-739. ISSN 1528-7505

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Four new metal organic frameworks with bivalent cadmium, disodium succinate (Na2suc) and four different N, N′ donor ligands; i.e.,{[Cd(L1)(suc)]·(H2O)3}n (1), {[Cd(L2)(suc)]·(H2O)2}n (2), {[Cd(L3)(suc)]·(H2O)4}n (3), {[Cd3(L4)3(suc)2(H2O)2]·(NO3)2 (H2O)4}n (4) [L1 = 2,5-bis-(4-pyridyl)-3,4-diaza-2,4-hexadiene, L2 = trans 4,4′-azobispyridine, L3 = 2,5-bis-(3-pyridyl)-3,4-diaza-2,4-hexadiene, L4 = 1, 2-bis(4-pyridyl) ethane and suc = succinate dianion] have been synthesized at room temperature and characterized by single-crystal X-ray diffraction and other physicochemical methods. Structure determination reveals that compounds 1 and 2 show honeycomb like 3D architecture with water filled channels. The dehydrated frameworks of 1 and 2 exhibit hydrogen and carbon dioxide adsorption property. In compound 3, change of linker (linear to bent) leads to the blockage of such regular channels which also affected the porosity and adsorption properties of its dehydrated framework. In 4, although the used spacer is linear but the resulting 3D framework contains blocked channels filled with nitrate (NO3–) anions and lattice water.

Item Type: Article
Subjects: Materials Chemistry
Depositing User: Dr Sunita Barve
Date Deposited: 26 Feb 2015 10:55
Last Modified: 26 Feb 2015 11:01

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