2D -> 3D polycatenated and 3D -> 3D interpenetrated metal-organic frameworks constructed from thiophene-2,5-dicarboxylate and rigid bis(imidazole) ligands

ERER H., YEŞİLEL O. Z., ARICI M., Keskin S., Buyukgungor O.

JOURNAL OF SOLID STATE CHEMISTRY, vol.210, no.1, pp.261-266, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 210 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1016/j.jssc.2013.11.036
  • Journal Name: JOURNAL OF SOLID STATE CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.261-266
  • Keywords: 2D -> 3D Polycatenated, 3D -> 3D Interpenetrated, Metal-organic frameworks, Thiophene-2,5-dicarboxylate complexes, Bis(imidazole) ligands, CRYSTAL-STRUCTURES, HYDROGEN ADSORPTION, DONOR LIGANDS, SIMULATIONS, COMPLEXES, NETWORKS, CLUSTERS, SERIES, ACID
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

Hydrothermal reactions of rigid 1,4-bis(imidazol-1-yl)benzene (dib) and 1,4-bis(imidazol-1-yl)-2, 5-dimethylbenzene (dimb) with deprotonated thiophene-2,5-dicarboxylic acid (H(2)tdc) in the presence of Zn(II) and Cd(II) salts in H2O produced three new metal-organic frameworks, namely, [Zn(mu-tdc)(H2O) (mu-dib)](n) (1), [Cd(mu-tdc)(H2O)(mu-dib)(n) (2), and {[Cd-2(mu(3)-tdc)(2)(mu-dimb)(2)] center dot (H2O)}(n) (3). These MOFs were characterized by FT-IR spectroscopy, elemental, thermal (TG, DTA, DTG and DSC), and single-crystal X-ray diffraction analyses. Isomorphous complexes 1 and 2 reveal polycatenated 2D+2D -> 3D framework based on an undulated (4,4)-sql layer. Complex 3 exhibits a new 4-fold interpenetrating 3D framework with the point symbol of 6(6). Molecular simulations were used to assess the potentials of the complexes for H-2 storage application. Moreover, these coordination polymers exhibit blue fluorescent emission bands in the solid state at room temperature. (C) 2013 Elsevier Inc. All rights reserved.