Synthesis, experimental and theoretical studies of two cocrystals in 1:1 stoichiometric ratio from 4,4′-bithiazole-2,2′-diamine with two hydrogen acceptor molecules was written by Ranjbar, Zohreh Rashidi;Morsali, Ali. And the article was included in Journal of Chemical Sciences (Berlin, Germany) in 2015.Reference of 15420-02-7 This article mentions the following:
This paper reports synthesis, characterization and theor. studies of two 1:1 stoichiometric ratio cocrystals of 4,4′-bithiazole-2,2′-diamine (DABTZ) with 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (bpo) and 1,3-bis(4-pyridyl)ethane (bpa). These cocrystal compounds have been prepared by slow evaporation method and characterized by elemental and thermal anal., FTIR, 1H and 13C-NMR spectroscopies and X-ray crystallog. X-ray crystal analyses show that these structures [(DABTZ) (bpo)] and [(DABTZ) (bpa)] have crystallized in monoclinic forms with space groups of P21/n and C 2/c, resp. These structures were studied theor. and the results are in good agreement with the exptl. data. [Figure not available: see fulltext.]. In the experiment, the researchers used many compounds, for example, 2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7Reference of 15420-02-7).
2,5-Di(pyridin-4-yl)-1,3,4-oxadiazole (cas: 15420-02-7) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Reference of 15420-02-7