A multi-responsive luminescent sensor towards Fe3+ and acetone based on a Cd-containing metal-organic framework

A Cd-containing metal-organic framework (CdL), formula as {[Cd-3(L)(2)(H2O)(6)]center dot 1.5DMF}, has been synthesized under solvothermal condition by the reaction of 4,4',4 ''-(methylsilanetriyl)tribenzoic acid (H3L) and Cd2+. ion. Single-crystal X-ray diffraction reveals that CdL displays a three-dimensional framework with 2-fold interpenetration and DMF molecules locate in the void space of the channels. A topological analysis of the framework indicates CdL is a 3,4-connected pto net. The photoluminescence properties of CdL are systematically studied in detail. Impressively, CdL shows excellent detection performance towards Fe3+ ion and acetone in the sensing experiments, which undoubtedly demonstrates the great potential of CdL as a highly selective multi-responsive luminescent sensor for the detection of organic solvents and metal ions. (C) 2016 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.