Metalation Studies of Carbophosphazene-Based Coordination Ligands: Metallacages to Polymeric Networks was written by Senapati, Tapas;Dey, Atanu;Kumar, Vierandra;Chandrasekhar, Vadapalli. And the article was included in Crystal Growth & Design in 2020.Safety of Pyridin-4-ol This article mentions the following:
The metalation behavior of [NC(NMe2)]2[NP(p-OC5H4N)2] (L1) and [NC(NMe2)]2[NP(m-OC5H4N)2] (L2) is described. The ligands L1 and L2 were prepared by the reaction of the carbophosphazene, [NC(NMe2)]2[NPCl2] with 4-hydroxy pyridine or 3-hydroxy pyridine. The disposition of the coordinating nitrogen atoms does not allow the coordinating groups within the same mol. to bind to a single metal ion. This leads to the formation of mol. complexes (di- and tetranuclear) and coordination polymers (one- and two-dimensional). Thus, the interaction of L1 with a Hg(II) salt afforded a dinuclear complex, [Hg(Cl)2(L1)]2 (1). The reaction of L2 with Ag(I) salts afforded both dinuclear complexes and tetranuclear complexes, [Ag(CF3SO3)(L2)]2 (2) and [Ag(NO3)(L2)]4璺?MeOH (3), resp. The reaction of copper acetate with L1 or L2 afforded one-dimensional polymeric networks [Cu2(CH3COO)4(L1)]n (4) and [Cu2(CH3COO)4(L2)]n (5). In 4 and 5, the basic dinuclear motif of copper acetate is preserved. In contrast to the reaction of L1 with HgCl2 which afforded a dinuclear complex 1, a similar reaction with L2 resulted in a two-dimensional polymeric network, [Hg(Cl)2(L2)]n (6). Similarly, the interaction of L2 with CoCl2 afforded a two-dimensional coordination polymer, [Co(Cl)2(L2)2]n (7). The latter contains 40-membered metallacylces, which are fused to each other in the formation of the coordination polymer. The efficacy of the carbophosphazene based ligands [NC(NMe2)]2[NP(p-OC5H4N)2] (L1) and [NC(NMe2)]2[NP(m-OC5H4N)2] (L2) toward metalation is described. The different disposition of the coordinating groups (meta vs para) in the carbophosphazene based platform impacts a pivotal role toward metalation, resulting m mol. complexes to coordination polymers. In the experiment, the researchers used many compounds, for example, Pyridin-4-ol (cas: 626-64-2Safety of Pyridin-4-ol).
Pyridin-4-ol (cas: 626-64-2) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of 閳?8.7 鑴?10閳? cm3璺痬ol閳?.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ璺痬ol閳? in the liquid phase and 140.4 kJ璺痬ol閳? in the gas phase. Halopyridines are particularly attractive synthetic building blocks in a variety of cross-coupling methods, including the Suzuki-Miyaura cross-coupling reaction.Safety of Pyridin-4-ol