Versatile functionalities in MOFs assembled from the same building units: interplay of structural flexibility, rigidity and regularity

Kanoo, Prakash ; Gurunatha, K. L. ; Maji, Tapas Kumar (2010) Versatile functionalities in MOFs assembled from the same building units: interplay of structural flexibility, rigidity and regularity Journal of Materials Chemistry, 20 (7). pp. 1322-1331. ISSN 0959-9428

Full text not available from this repository.

Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/2010...

Related URL: http://dx.doi.org/10.1039/B917029D

Abstract

A systematic study of the formation of Cu(II) metal–organic frameworks (MOFs) with 1,4-naphthalene dicarboxylate (1,4-ndc) was carried out by varying solvent and temperature that resulted four new MOFs {[Cu(1,4-ndc)·H2O·3H2O} (1), {[Cu(1,4-ndc)(MeOH)]·MeOH} (2), {[Cu(1,4-ndc)(H2O)]·1.8H2O} (3) and {[Cu2(µ-OH)2(1,4-ndc)](H2O)} (4). Single crystal structural analyses reveal that a paddle-wheel Cu2(CO2)4 core is the secondary building unit in 1–3 and extended to different dimensionality by the 1,4-ndc ligand. Compound 1 shows a unique 2-fold interpenetrated 3D biporous structure with hydrophobic and hydrophilic channels. Compounds 2 and 3 have 2D networks with different orientations of the 1,4-ndc ligand and provide a 1D supramolecular channel structure. Compound 4 was characterized by IR, CHN, PXRD and FESEM analyses. All the frameworks show permanent porosity suggested by the CO2 sorption studies. Dehydrated frameworks of 1 and 4 exhibit gas storage properties whereas 2 shows highly selective gated MeOH sorption over H2O. Compound 4 shows ferromagnetic ordering, suggesting coexistence of multiple functionalities within the same framework. Overall, we have fabricated MOFs with adaptable functionalities supported by structural regularities based on the same building units.

Item Type:Article
Source:Copyright of this article belongs to Royal Society of Chemistry.
ID Code:114577
Deposited On:29 May 2018 08:14
Last Modified:29 May 2018 08:14

Repository Staff Only: item control page