Synthetic Route of C22H38NiO4. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)nickel(II), is researched, Molecular C22H38NiO4, CAS is 14481-08-4, about Thermodynamics of metal-ligand bond formation. VI. Trimerization and base addition of nickel(II) β-diketonates. Author is Ang, L. T.; Graddon, D. P..
Five Ni(II) complexes of β-diketones(LH) were studied by calorimetric titration with pyridine in C6H6 solution Trimerization of the complexes NiL2 is endothermic and entropy-driven, probably as a result of desolvation of the low-spin monomers. Reaction with pyridine occurs in 2 steps, forming successively Ni2L4(py) and NiL2(py)2. The enthalpy of formation of NiL2(py)2 from the intermediate adduct is about -40 kJ mole-1 and shows no evidence for bulkiness of the ligand leading to steric instability in Ni2L4(py). Variations in the relative stabilities of the monomeric and trimeric forms of NiL2 seem more likely to be due to electronic than steric effects.
《Thermodynamics of metal-ligand bond formation. VI. Trimerization and base addition of nickel(II) β-diketonates》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)nickel(II))Synthetic Route of C22H38NiO4.
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