A Solid-State Luminescent Cd(II) Supramolecular Coordination Framework Based on Mixed Luminophores as a Sensor for Discriminatively Selective Detection of Amine Vapors

• DOI: 10.1021/acs.inorgchem.0c00297
• Publication Date: 2020-04-21T11:49:13Z
• Authors: Sujitra Tunsrichon; Chattarika Sukpat...; Daniel Escudero; Nawee Kungwan; Sujittra Youngme; Jaursup Boonmak
• Keywords: Ethylene diamine; Supramolecular assembly

A novel Cd(II) supramolecular coordination framework containing mixed functionalized luminophore ligands, namely, [Cd(AS)2(phen)2]EtOH or 1 (where AS = 4-aminosalicylate, phen 1,10-phenanthroline, EtOH ethanol), was successfully synthesized as a solid-state luminescent sensor for the detection of amine vapors. The single-crystal X-ray diffraction analysis revealed that possesses three-dimensional (3D) enclosing ethanol molecule in lattice. structure is well-stabilized by various noncovalent intermolecular interactions through functional groups ligands. Compound shows an intense yellow emission and displays reversibly discriminative response to NH3 ethylenediamine (EDA) vapors very large blue-shifted spectra with distinguishable colors under UV light. This work reports first time selective sensing EDA considerably different color change. mechanism has been confirmed density theory time-dependent calculations agrees well experimental results. Also, exhibits good recyclability over five cycles