Two new inorganic-organic hybrid compounds templated by SiW12O4-40 anion with nonlinear ligands was written by Wang, Xiu-Li;Hu, Hai-Liang;Chen, Bao-Kuan;Lin, Hong-Yan;Tian, Ai-Xiang;Li, Jin. And the article was included in Solid State Sciences in 2011.Safety of 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole This article mentions the following:
Two new Keggin-type polyoxoanion-templated inorganic-organic hybrids, [Cu(3,4-bpo)2(H2O)(SiW12O40)]·(3,4-H2bpo)·7H2O (1) and [Cu(4,4′-Hbpo)2(4,4′-bpo)(H2O)(SiW12O40)]·3H2O (2) (3,4-bpo = 2-(3-pyridyl)-5-(4-pyridyl)-1,3,4-oxadiazole, 4,4′-bpo = 2,5-bis(4-pyridyl)-1,3,4-oxadiazole), were hydrothermally synthesized by changing the terminal N-donor’s orientation of the nonlinear ligands. X-ray structural analyses indicate that compound 1 shows a two-dimensional (2D) (4,4) grid sheet. The discrete SiW12O404- anions as templates locate on the square voids of the sheet. Compound 2 exhibits an arm-shaped chain structure. It is believed that the isomeric organic ligands play a key role in the structure control of the self-assembly processes. Also, compound 1 bulk-modified carbon paste electrode (1-CPE) displays good electrocatalytic activity toward the reduction of nitrite. In the experiment, the researchers used many compounds, for example, 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7Safety of 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole).
2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7) belongs to pyridine derivatives. Pyridines are an important class of heterocycles and occur in polysubstituted forms in many naturally occurring biologically active compounds, drug molecules and chiral ligands. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Safety of 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole