Jump to main content
Jump to site search

Issue 1, 2012
Previous Article Next Article

Near-critical water, a cleaner solvent for the synthesis of a metal–organic framework

Author affiliations

Abstract

The microporous metal–organic framework {[Zn2(L)]·(H2O)3} (H4L = 1,2,4,5-tetrakis(4-carboxyphenyl)benzene) has been synthesised using near-critical water (300 °C) as a cleaner alternative to toxic organic solvents. A single crystal X-ray structure determination confirms that the complex incorporates tetrahedral Zn(II) centres bridged through the carboxylate anions to form a binuclear building block, which extends into a one dimensional chain along the c axis. Four L4− ligands bind to each Zn(II) centre and cross-link the one dimensional chains along both a and b axes to afford a three dimensional network structure incorporating pores of ca. 4.3 Å in diameter. The complex shows high thermal stability up to 425 °C by gravimetric thermal analysis, and on desolvation, displays a high adsorption enthalpy of 11.0 kJ mol−1 for H2 uptake at zero coverage, consistent with the narrow pore diameter for the framework.

Graphical abstract: Near-critical water, a cleaner solvent for the synthesis of a metal–organic framework

Back to tab navigation

Supplementary files

Publication details

The article was received on 20 Jun 2011, accepted on 05 Sep 2011 and first published on 14 Nov 2011


Article type: Paper
DOI: 10.1039/C1GC15726D
Citation: Green Chem., 2012,14, 117-122
  •   Request permissions

    Near-critical water, a cleaner solvent for the synthesis of a metal–organic framework

    I. A. Ibarra, P. A. Bayliss, E. Pérez, S. Yang, A. J. Blake, H. Nowell, D. R. Allan, M. Poliakoff and M. Schröder, Green Chem., 2012, 14, 117
    DOI: 10.1039/C1GC15726D

Search articles by author

Spotlight

Advertisements