Jump to main content
Jump to site search

Issue 31, 2012
Previous Article Next Article

Solvents control over the degree of interpenetration in metal-organic frameworks and their high sensitivities for detecting nitrobenzene at ppm level

Author affiliations

Abstract

Solvothermal syntheses in DMF and acetonitrile afforded two novel MOFs, Zn3(L1)2(L2)·3.6 DMF·4.0 H2O (1) and Zn3(L1)2(L2) (2) [L1 = 4-[3-(4-carboxyphenoxy)-2-[(4-carboxyphenoxy)methyl]-2-methyl-propoxy]benzoate, L2 = 1,4-bis(1-imidazolyl)benzene], respectively. Single crystal X-ray analyses reveal that 1 and 2 are structurally closely related with the same building blocks and 3-dimesional 3, 8-connected tfz-d net. 1 is based on a 2-fold interpenetrating network with extra-framework DMF and water molecules located in the void space, while 2 is different in its 3-fold interpenetrating network and absence of any solvent molecules. This simple and easy strategy unprecedentedly controls the degree of interpenetration in MOFs through varying solvents. Luminescent properties of activated phase 1′ and 2 well dispersed in different solvents have also been investigated systematically, which demonstrate distinct solvent-dependent luminescent spectra with emission intensities significantly quenched toward nitrobenzene (NB). For luminescence responses of 1′ and 2 dispersed in DMF solution with gradually increased NB contents, detectable quenching effects were observed even at a very low NB concentration of 50 ppm, indicating extremely high sensitivities of 1′ and 2 towards NB.

Graphical abstract: Solvents control over the degree of interpenetration in metal-organic frameworks and their high sensitivities for detecting nitrobenzene at ppm level

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 02 Apr 2012, accepted on 11 Jun 2012 and first published on 13 Jun 2012


Article type: Paper
DOI: 10.1039/C2JM32066E
Citation: J. Mater. Chem., 2012,22, 15939-15946
  •   Request permissions

    Solvents control over the degree of interpenetration in metal-organic frameworks and their high sensitivities for detecting nitrobenzene at ppm level

    M. Guo and Z. Sun, J. Mater. Chem., 2012, 22, 15939
    DOI: 10.1039/C2JM32066E

Search articles by author