Issue 15, 2012

Syntheses of POM-templated MOFs containing the isomeric pyridyltetrazole

Abstract

By introducing the isomeric pyridyltetrazole into POMs, four POM-templated MOFs compounds, H[Ag6(2-pytz)4(H2O)4][PW12O40]·6H2O (1), [Ag3(3-pytz)2]2[AgPW12O40] (2), H[KAg7(4-pytz)5][SiW12O40] (3), {H[NaAg7(4-pytz)5(H2O)0.5][GeMo12O40]}2 (4) [pytz = 5-(pyridyl) tetrazolate], were hydrothermally synthesized and characterized by routine methods and single-crystal X-ray crystallography. Due to 2-pytz as a bridging linker and chelator, compound 1 displays a 2D MOF with a void (ca. 19.1 × 8.8 Å), in which the Keggin anions as sandwich templates locate in the adjacent two voids. In 2, 3-pytz as a shorter radiating linker generates a compacted 2D MOF, in which the Keggin anions as chain templates direct the formation of a stair-like MOF. In the isostructural compounds 3 and 4, 4-pytz as the bridging and radiating linkers form 3D covalent MOFs with larger voids (ca. 25.3 × 12.5 Å), in which the Keggin anions as double-templates occupy the voids in a “shoulder-to-shoulder” mode. In addition, the photoluminescence of the compounds were investigated.

Graphical abstract: Syntheses of POM-templated MOFs containing the isomeric pyridyltetrazole

Supplementary files

Article information

Article type
Paper
Submitted
07 Jan 2012
Accepted
02 May 2012
First published
02 May 2012

CrystEngComm, 2012,14, 5053-5064

Syntheses of POM-templated MOFs containing the isomeric pyridyltetrazole

J. Sha, J. Sun, C. Wang, G. Li, P. Yan, M. Li and M. Liu, CrystEngComm, 2012, 14, 5053 DOI: 10.1039/C2CE00025C

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