Three Coordination Polymers Based on 1H-Tetrazole (HTz) Generated via in Situ Decarboxylation: Synthesis, Structures, and Selective Gas Adsorption Properties

Di-Chang Zhong, Wen-Guan Lu, Long Jiang, Xiao-Long Feng and Tong-Bu Lu*
MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, and School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
Department of Chemistry, Shaoguan University, Shaoguan 512005, P. R. China
Cryst. Growth Des., 2010, 10 (2), pp 739–746
DOI: 10.1021/cg901128k
Publication Date (Web): November 24, 2009
Copyright © 2009 American Chemical Society
*To whom correspondence should be addressed. Fax: +86-20-84112921. E-mail: lutongbu@mail.sysu.edu.cn.

Abstract

Abstract Image

Three tetrazole-based coordination polymers, [Zn3(Tz)6(H2O)2]n (1), [Cu2(Tz)3(OH)]n (2), and {[Cu5(Tz)9](NO3)·8H2O}n (3) (Tz = tetrazolate) have been prepared under hydro(solvo)thermal conditions using ethyl tetrazolate-5-carboxylate and corresponding metal salts as building blocks, in which tetrazolate was generated via in situ decarboxylation. The results of X-ray single diffraction analyses indicate that 1 possesses a 2D layer structure with μ2-Tz bridged six- and four-coordinated Zn(II), forming a rare kagomé dual topological layer. Compound 2 is a 3D layer−pillar structure, in which the Cu(II) ions are bridged by μ3-Tz anions to generate a 2D sheet, and the 2D sheets are further pillared by μ2-Tz and μ2-OH to form a 3D framework with a fsc topology net. Compound 3 is a 3D porous framework with an acs topology net. Compound 1 exhibits photoluminescent properties with an emission peak at 467 nm, and compound 3 shows selective H2 and CO2 over N2 adsorption.

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History

  • Published In Issue February 03, 2010
  • Article ASAPNovember 24, 2009
  • Received: September 15, 2009
    Revised: November 05, 2009

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