Jump to main content
Jump to site search

Issue 2, 2017
Previous Article Next Article

Mesoporous stilbene-based lanthanide metal organic frameworks: synthesis, photoluminescence and radioluminescence characteristics

Author affiliations

Abstract

Ultra large pore isostructural metal organic frameworks (MOFs) which exhibit both photoluminescence and scintillation properties, were synthesized from trans-4,4′-stilbenedicarboxylic acid (H2L) and trivalent lanthanide (Ln) metal salts under solvothermal conditions (Ln = Er3+ (1) and Tm3+ (2)). This new class of mesoporous materials is a non-interpenetrating network that features ultra-large diamond shaped pores of dimensions with approximate cross-sectional dimensions of 28 Å × 12 Å. The fully deprotonated ligand, L, is isolated and rigidified as it serves as the organic linker component of the MOF structure. Its low density unit cells possess asymmetric units with two crystallographically independent Ln3+ ions in seven coordinate arrangements. A distinct feature of the structure is the bis-bidentate carboxylate groups. They serve as a ligand that coordinates two Ln(III) ions while each L connects four Ln(III) ions yielding an exceptionally large diamond-shaped rectangular network. The structure exhibits ligand-based photoluminescence with increased lifetime compared to free stilbene molecules on exposure to UV radiation, and also exhibits strong scintillation characteristics, comprising of both prompt and delayed radioluminescence features, on exposure to ionizing radiation.

Graphical abstract: Mesoporous stilbene-based lanthanide metal organic frameworks: synthesis, photoluminescence and radioluminescence characteristics

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 Sep 2016, accepted on 07 Dec 2016 and first published on 07 Dec 2016


Article type: Paper
DOI: 10.1039/C6DT03755K
Citation: Dalton Trans., 2017,46, 491-500
  •   Request permissions

    Mesoporous stilbene-based lanthanide metal organic frameworks: synthesis, photoluminescence and radioluminescence characteristics

    S. R. Mathis II, S. T. Golafale, J. Bacsa, A. Steiner, C. W. Ingram, F. P. Doty, E. Auden and K. Hattar, Dalton Trans., 2017, 46, 491
    DOI: 10.1039/C6DT03755K

Search articles by author

Spotlight

Advertisements