Microwave-assisted SNAr reaction of 2,4,6-trichloro-1,3,5-triazine for the rapid synthesis of C3-symmetrical polycarboxylate ligands
摘要:
The microwave-assisted SNAr reaction of 2,4,6-trichloro-1,3,5-triazine with various unprotected amino acids was developed for the synthesis of C-3-symmetrical polycarboxylate ligands which can be used as structural directing units in metal-organic frameworks. The reactions were performed in water using a domestic microwave oven as the heating device. In comparison to the reactions performed under conventional heating, the reactions under microwave irradiation proceeded much more rapidly within 20 min to afford the desired ligands in comparative yields to those obtained by conventional heating. (C) 2012 Elsevier Ltd. All rights reserved.
Metal–organic framework composites with luminescent gold(<scp>iii</scp>) complexes. Strongly emissive and long-lived excited states in open air and photo-catalysis
作者:Chun-Yi Sun、Wai-Pong To、Xin-Long Wang、Kaai-Tung Chan、Zhong-Min Su、Chi-Ming Che
DOI:10.1039/c5sc02216a
日期:——
Encapsulation of luminescent gold(iii) complexes by metal–organic frameworks results in enhanced phosphorescence in open air, solid state two-photon-induced phosphorescence, and reusable photo-catalysts under aerobic conditions.
A luminescent two-dimensional metal–organic framework, [(Pr2(TATMA)2)·4DMF·4H2O]n (1), was solvothermally synthesized based on the semi-rigid organic ligand 4,4′,4′′-s-triazine-1,3,5-triyltri-m-aminobenzoate (H3TATMA). 1 possesses binuclear Pr2(COO)6} subunits and fully deprotonated TATMA3− organic ligands, which can be further simplified into a 3,6-connected kgd topology with the Schläfli symbol
A Water‐Stable Terbium(III)–Organic Framework as a Chemosensor for Inorganic Ions, Nitro‐Containing Compounds and Antibiotics in Aqueous Solutions
作者:Jun‐Hua Wei、Jing‐Wei Yi、Min‐Le Han、Bo Li、Shan Liu、Ya‐Pan Wu、Lu‐Fang Ma、Dong‐Sheng Li
DOI:10.1002/asia.201900706
日期:2019.10.15
detecting Fe3+ , MnO4 - , 4-nirophenol and nitroimidazole (ronidazole, metronidazole, dimetridazole, ornidazole) in aqueous through luminescent quenching. The results suggest that Tb-MOF is a simple and reliable reagent with multiple sensor responses in practical applications. To the best of our knowledge, this work represents the first TbIII -based MOF as an efficient fluorescent sensor for detecting metal
An ultrastable luminescent europium-organic framework, [Eu (L) (H2O)(2)]center dot NMP center dot H2O}(n) (CTGU-2; NMP = N-methyl-2-pyrrolidone), can first detect Fe2+/Fe3+ cations in different medium systems with high selectivity and sensitivity, and it also exhibits high sensitivity for Cr2O72- anion and acetone with a wide linear range and a low detection limit.
An Exceptionally Stable Tb<sup>III</sup>-Based Metal–Organic Framework for Selectively and Sensitively Detecting Antibiotics in Aqueous Solution
An exceptionally stable metal-organic framework based on one-dimensional (1D) Tb-III chains with significant green emission under excitation energy, [Tb-(TATMA)(H2O)center dot 2H(2)O}(n) (namely, 1), has been fabricated successfully under hydrothermal conditions. By virtue of the spectral overlap between the absorbance spectra of nitrofurans (NFAs) and the excitation spectrum of MOF 1, the resultant sample exhibits outstandingly sensitive and selective luminescence detectability for NFT (K-sv = 3.35 x 10(4) M-1) and NFZ (K-sv = 3.00 X 10(4) M-1) by quenching phenomenon. More importantly, it can detect NFAs in water from bovine serum samples. The portable MOF film can be easily prepared and used with excellent stability and recursitivity.