Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Nickel(ii)fluoridetetrahydrate, is researched, Molecular F2H8NiO4, CAS is 13940-83-5, about Thermal investigation of metal fluoroberyllate hydrates and metal fluoride hydrates.Synthetic Route of F2H8NiO4.
The thermal decompositions of MBeF4.xH2O and MF2.xH2O, where M = Ni(II), Co(II) or Cu(II) and x = 0-6, were carried out using a MOM derivatograph. Dehydration takes place in multiple steps. Anhydrous fluoroberyllates dissociate first to MF2 and BeF2 and then decompose to MO and BeO in 2 steps. Metal fluorides give ultimately oxyfluoride in one step. None of the intermediate hydrates is thermally stable, except CuF2.2H2O. The probable mechanisms of thermal decomposition are reported. Pyrolyzed products were characterized by elemental anal. and x-ray powder patterns. The enthalpy change is reported for each decomposition step.
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Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider