A Simple, Green, and Efficient One-Pot Synthesis of Dihydropyrano[3,2-c]chromene Derivatives Using MgMnO3@ZrO2@CoO as a Core–Shell Nanocrystalline Catalyst
enthalpies and entropies were determined. In the cobalt(II) chloro system electronic spectra of individual complexes were also determined. The thermodynamic parameters of formation of the chlorocomplexes of these metal(II) ions are compared with those of nickel(II), copper(II) and zinc(II) ions.
的锰氯配合物的形成(II)和钴(II)离子一直量热和分光光度法在研究Ñ,Ñ含有0.4摩尔DM -二甲基-甲酰胺(DMF)-3(C 2 H ^ 5)4 NClO 4,为恒定离子介质温度为25°C。用[MCl n ] (2- n)+(n = 1-4和M = Mn或Co)的形成来解释在每个系统中获得的量热数据,并确定它们的形成常数,焓和熵。在钴(II)还确定了各个配合物的氯系统电子光谱。形成这些金属(的氯络合物的热力学参数II)离子与镍(相比II),铜(II)和锌(II)离子。