Crystalline and molecular design of functionalized viologens
摘要:
The regularities of molecular and crystalline structure of functionalized (including mesoionic) viologens were systematically studied. For this purpose a number of fundamentally new viologenic systems was synthesized containing functional groups in side substituents. As a result of extensive X-ray structural studies it is revealed that unlike "classical" viologens, which in crystal form cation-anion pairs or cation-anion stacks, functionalized viologens are bound into endless chains by means of strong intermolecular hydrogen bonds.
Photo- and thermo-activated electron transfer system based on a luminescent europium organic framework with spectral response from UV to visible range
作者:Hengjun Chen、Guiming Zheng、Min Li、Yifang Wang、Yang Song、Conghui Han、Jingcao Dai、Zhiyong Fu
DOI:10.1039/c4cc05975a
日期:——
A dual stimuli-responsive system with spectral response from UV to the visible region was constructed by introducing methyl viologen into a luminescent Eu-MOF with a compact packing mode.
A methyl viologen-containing cadmium crystalline material with photochromism and methylamine sensing properties
作者:Zhao-Hao Li、Li-Ping Xue、Qiu-Pei Qin
DOI:10.1016/j.jssc.2020.121755
日期:2021.1
A cadmium crystalline material, namely, (MV)n[Cd(FDC)2]n (H2FDC = 2,5-furandicarboxylic acid; MV = methyl viologen) has been successfully constructed and fully characterized by single-crystal X-ray structure determination, IR spectra, elemental analyses and powder X-ray diffractions. The compound features a 2D layer structure, in which in situ generated MV2+ cations located in the interlayer. The
the biomass conversion process due to their unique properties, including environmental friendship, low toxicity, and simple preparation. In this work, a series of novel piperidinium-based ionic liquids were synthesized under mild conditions via a simple protonation reaction or nucleophilic substitution reaction. Among them, 4,4′-(propane-1,3-diyl)bis(1-(carboxymethyl)piperidin-1-ium) chloride ([PDCMPi]Cl)