title: Spontaneous resolution, asymmetric catalysis, and fluorescence properties of δ- and λ-[cu(tzmp)]N enantiomers from in situ [2 + 3] cycloaddition synthesis.
abstract: Although a number of acentric or chiral tetrazole complexes were synthesized from Sharpless reaction, there are no spontaneous resolution Cu(I)-tetrazole compounds from in situ [2 + 3] cycloaddition synthesis that have been reported before. The first enantiomers Δ- and Λ- of metal tetrazole compound [Cu(Tzmp)]n (1) (HTzmp = 3-tetrazolemethylpyridine) were obtained and isolated from in situ [2 + 3] cycloaddition reactions of a flexible organic nitrile (3-cyanomethylpyridine) with sodium azide in the presence of CuCl2 as the Lewis acid. Δ-1 and Λ-1 feature a homochiral helical coordination polymeric system and {4(4).6(2)} two-dimensional framework. The photoluminescence study suggests 1 exhibits strong green fluorescence in solid state with maximal emission peaks around 535 nm. Remarkably, the Δ- and Λ- of [Cu(Tzmp)]n (1) catalyzes the enantioselective Henry reaction with high yield (more than 96%) and certain enantioselectivity (up to 69%).
authors.affiliation: School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China.
authors.forename: Yun-Zhi
authors.initials: YZ
authors.lastname: Tang
authors.affiliation: School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China.
authors.forename: Jian-Bo
authors.initials: JB
authors.lastname: Xiong
authors.affiliation: School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China.
authors.forename: Ji-Xing
authors.initials: JX
authors.lastname: Gao
authors.affiliation: School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China.
authors.forename: Yu-Hui
authors.initials: YH
authors.lastname: Tan
authors.affiliation: School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Xu
authors.affiliation: School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi Province, P. R. China.
authors.forename: He-Rui
authors.initials: HR
authors.lastname: Wen