Thermodynamics of metal-ligand bond formation. IX. Trimerization and base addition of Bis(2,6-dimethylheptane-3,5-dionato)nickel(II)
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The equilibrium constant for trimerization of bis(2,6-dimethylheptane-3,5-dionato)nicke1(11) in benzene solution at 30�C has been determined spectrophotometrically, K = 2 x 103 I2 mol-1; the heat of trimerization has been determined calorimetrically, ΔH = -7 kJ (g-atom Ni)1. Thermo- dynamic data have also been obtained for the base addition reactions with pyridine leading to first Ni2L4(py) then NiL2(py)2. Results are compared with those previously obtained for other nickel(11) β-diketone complexes.
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1971 ◽
Vol 24
(12)
◽
pp. 2509
◽
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