Pillared metal organic frameworks for the luminescence sensing of small molecules and metal ions in aqueous solutions. Issue 4 (3rd December 2014)

• Record Type: Journal Article
• Authors: Liu, Fu-Hong; Qin, Chao; Ding, Yan; Wu, Han; Shao, Kui-Zhan; Su, Zhong-Min
• Is Part Of: Dalton transactions. Volume 44:Issue 4(2015)
• Page Start: 1754
• Page End: 1760
• Publication Date: 2014-12-03
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c4dt02961e
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Two pillared-layer MOFs as luminescent probes with multifunctional sensitivities to detect metal ions and small molecules were reported. Our results show that the luminescence intensities of1a and2a are highly sensitive to Fe 3+ and Cd 2+ ions and small molecules such as acetone and nitrobenzene. Abstract : Two novel pillared MOFs (metal organic frameworks) [Zn2 (trz)2 (tda)]·DMA CH3 OH (1 ) and [Zn2 (trz)2 (bpdc)]·DMA (2 ) were obtained under solvothermal conditions. The resulting MOFs show similar structures but with different interlayer distances based on the different carboxylate ligands.1 and2 display a certain degree of framework stability in both acid/base solutions and water. The luminescence intensities of the activated phases1a and2a are sensitive to metal ions, particularly Fe 3+ and Cd 2+ ions. Furthermore, the luminescent properties of1a and2a well dispersed in different solvents have also been investigated systematically, which demonstrate distinct solvent-dependent luminescent spectra with emission intensities that are significantly quenched by acetone, nitrobenzene and trinitrotoluene.