过渡金属亮氨酸配合物的热化学性质研究

Investigation of Thermochemical Properties of Solid Complexes of Leucine with Transition Metal

摘要: 合成了3种过渡金属(铁、钴、镍)亮氨酸的固态配合物,经化学分析、元素分析、红外光谱和TG-DTA的测定,确定它们的组成分别为Fe2(Leu)6(SO4)3.H2O;Co(Leu)2C l2.0.5H2O;N i(Leu)2C l2.2H2O.用HWR-15型恒温式微机量热计测定了固态配合物的恒容燃烧能,计算了它们的标准摩尔生成焓.

Abstract: Three solid complexes of L-leucine acid with Fe(Ⅲ),Co(Ⅱ) and Ni(Ⅱ) were synthesized.The composition of the complexes were investigated by chemical analysis,element analysis,IR and TG-DTA.The chemical compositions of three complexes are Fe_2(Leu)_6(SO_4)_3·H_2O,Co(Leu)_2Cl_2·0.5H_2O and Ni(Leu)_2Cl_2·2H_2O.The constant volume combustion energies of the complexes(△_cE) have been determined by a HWR-15 type constant temperature computer calorimeter at 298.15 K.The standard molar enthalpies of combustion Δ_cH~Θ...