The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-(4-Pyridyl)-1H-tetrazole( cas:14389-12-9 ) is researched.Safety of 5-(4-Pyridyl)-1H-tetrazole.Sha, Jing-Quan; Sun, Jing-Wen; Wang, Cheng; Li, Guang-Ming; Yan, Peng-Fei; Li, Meng-Ting; Liu, Ming-Yuan published the article 《Syntheses of POM-templated MOFs containing the isomeric pyridyltetrazole》 about this compound( cas:14389-12-9 ) in CrystEngComm. Keywords: silver pyridyltetrazole polyoxometalate template MOF hydrothermal preparation crystal structure; luminescence silver pyridyltetrazole polyoxometalate template MOF. Let’s learn more about this compound (cas:14389-12-9).
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 crystallog. Due to 2-pytz as a bridging linker and chelator, compound 1 displays a 2D MOF with a void (∼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 (∼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 studied.
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis