标题:Temperature-induced Sn(II) supramolecular isomeric frameworks as promising heterogeneous catalysts for cyanosilylation of aldehydes
作者:Sheng, Kai; Fan, Li-Ming; Tian, Xue-Fei; Gupta, Rakesh Kumar; Gao, Linna; Tung, Chen-Ho; Sun, Di
作者机构:[Sheng, Kai; Tian, Xue-Fei; Gupta, Rakesh Kumar; Tung, Chen-Ho; Sun, Di] Shandong Univ, Sch Chem,Key Lab Colloid, State Key Lab Crystal Materials,Inte 更多
通讯作者:Gupta, Rakesh Kumar;Gupta, RK;Sun, D
通讯作者地址:[Gupta, RK; Sun, D]Shandong Univ, Sch Chem,Key Lab Colloid, State Key Lab Crystal Materials,Interface Chem, Minist Educ,Chem Engn, Jinan, Peoples R Ch 更多
来源:SCIENCE CHINA-CHEMISTRY
出版年:2020
卷:63
期:2
页码:182-186
DOI:10.1007/s11426-019-9621-x
关键词:supramolecular isomerism; Sn(II) coordination polymers; catalysis;; cyanosilylation
摘要:Two novel Sn(II) supramolecular isomeric frameworks, with the identical formula of {(NH2Me2)(2)[Sn(BDC)(SO4)]}(n), Sn-CP-1-alpha (1) and Sn-CP-1-beta (2) (H2BDC=terephthalic acid) were synthesized under solvothermal condition and fully characterized by single crystal X-ray diffraction (SCXRD), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), elemental analyses, and thermogravimetric analysis (TGA). Interestingly, the structures of 1 and 2 are governed by the temperature of the reaction, suggesting a temperature-induced supramolecular isomerism. The supramolecular isomers are primarily caused by the different bridging alignments of SO4(2-). Compounds 1 and 2 display 2D layer and 3D framework with different topologies, non-interpenetrated 4(4)-sql and two-fold interpenetrated 4-connected dia topology, respectively. Due to Lewis acid properties of coordinatively unsaturated Sn(II) sites in CPs, they have been utilized as heterogeneous catalyst for the cyanosilylation of aldehydes with an excellent conversion yield over 99% under solvent-free conditions.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076270349&doi=10.1007%2fs11426-019-9621-x&partnerID=40&md5=e947dff61897b8eebff928be8e430aec
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