Synthesis and characterization of new coordination polymers generated from oxadiazole-containing ligands and IIB metal ions was written by Cheng, Jun-Yan;Dong, Yu-Bin;Huang, Ru-Qi;Smith, Mark D.. And the article was included in Inorganica Chimica Acta in 2005.Recommanded Product: 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole This article mentions the following:
The coordination chem. of the oxadiazole-containing rigid bidentate ligands 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (L1) and 2,5-bis(3-pyridyl)-1,3,4-oxadiazole (L2) with inorganic IIB metal salts were studied. Five new coordination polymers (1–5) were prepared by solution reactions and fully characterized by IR spectroscopy, elemental anal., and single-crystal x-ray diffraction. Cd(L1)2(MeCN)2(ClO4)2璺?MeCN)2 (1) crystallized in the monoclinic space group P21/c, a 8.4028(5), b 21.3726(13), c 10.5617(7) 鑴? 灏?95.1200(10)鎺? and Z = 2. In the solid state, it adopts an infinite two-dimensional polymeric structural motif with effective cross section of 閳?4.31 鑴?14.31 鑴? Cd(L2)(H2O)(NO3)2 (2) crystallized in the monoclinic Ia, a 7.1203(5), b 22.2475(15), c 20.2652(16) 鑴? 灏?90.6080(10)鎺? and Z = 8. In the solid state, the two Cd(II) centers are connected to each other by L2 ligands and bridging nitrates into a two-dimensional network. [ZnCl2(L1)] (3) and [HgI2(L1)]璺疢eCN (4) crystallized in the monoclinic crystal system (3: space group P21/c, a 5.3702(3), b 20.4800(11), c 12.4093(7) 鑴? 灏?94.7930(10)鎺? and Z = 4; 4: space group P2/n, a 17.2733(11), b 5.2173(3), c 20.4069(13) 鑴? 灏?102.8690(10)鎺? and Z = 4). In the solid state, Zn(II) and Hg(II) metal centers are connected to each other by L1 ligands into a zigzag chain motif. Compound 5 (HgBr2(L2) is different from 3 and 4, monoclinic, P2(1)/n, a 5.470(4), b 16.271(13), c 16.486(12) 鑴? 灏?93.197(15)鎺? and Z = 4) and adopts a novel 1-dimensional helical chain motif which resulted from the relative different coordinated orientation of the two N-donors on L2 ligand. In the experiment, the researchers used many compounds, for example, 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7Recommanded Product: 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. Pyridine’s the lone pair does not contribute to the aromatic system but importantly influences the chemical properties of pyridine, as it easily supports bond formation via an electrophilic attack. One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Recommanded Product: 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole