title: Isolation and crystallographic characterization of a solid precipitate/intermediate in the preparation of 5-substituted 1H-tetrazoles from nitrile in water.
abstract: The reactions of 2-, 3-, and 4-cyanopyridine with NaN(3) in the presence of H(2)O and Lewis acid (ZnCl(2)) afford discrete monomer, (2-PTZ)(2)Zn(H(2)O)(2) (1), 3D diamondoid-like network (3-PTZ)(2)Zn (2), and 2D layered network (4-PTZ)Zn(OH)(H(2)O) (3), respectively (PTZ = 5-(pyridyl)tetrazolato). Their solid state structures and natures give new insight into the Sharpless reaction of 5-substituted 1H-tetrazole. Interestingly, 2 crystallizes in a noncentrosymmetric space group and its powdered sample is second-harmonic generation active.
authors.affiliation: Coordination Chemistry Institute, The State Key Laboratory of Coordination Chemistry, Nanjing University, 210093 Nanjing, P. R. China.
authors.forename: Li-Zhong
authors.initials: LZ
authors.lastname: Wang
authors.forename: Zhi-Rong
authors.initials: ZR
authors.lastname: Qu
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
authors.forename: Xi-Sen
authors.initials: XS
authors.lastname: Wang
authors.forename: Ren-Gen
authors.initials: RG
authors.lastname: Xiong
authors.forename: Zi-Ling
authors.initials: ZL
authors.lastname: Xue