8-羟基喹啉过渡金属配合物的标准生成焓测定

Determination of Standard Enthalpies of Formation of the Complexes of 8-Hydroxyquinoline with Transition Metallic M(II)

在准室温条件下,通过固相反应一步合成8-羟基喹啉(C9H7ON)过渡金属配合物:Co(oxine)2·2H2O、Ni(oxine)2·2H2O、Cu(oxnie)2,在HR-15型静态氧弹热量计上测定了配合物的燃烧热,根据热化学原理计算出配合物的标准生成焓:ΔfHΘm[Co(oxine)2·2H2O,(s)]=-994.36±6.65KJ/mol;ΔfHmΘ[Ni(oxine)2·2H2O,(s)]=-1002.21±6.49KJ/mol;ΔfHmΘ[Cu(oxnie)2,(s)]=-1703.90±3.02KJ/mol。

The complexes of transition metallic with 8-Hydroxyquinoline ,Co（oxine）2·2H2O（s）, Ni（oxine）2·2H2O（s）, and Cu（oxnie）2 （s） were prepared by the solid phase reaction at low heating temperature. The heat of combustion of the complexes had been determined by using HR-15static oxygen-bomb calorimeter. The standard enthalpies of formation were calculated for these complexes. The recommended values of standard enthalpy of formation is △f Hm^- [Co（oxine）2 ·2 H2O, （s） ] = - 994.36 ± 6.65KJ/mol; △fHm^- [-Ni（oxine）2·2H2O, （s）]= - 1002. 21± 6. 49KJ/mol; △fHm^- [Cu（oxnie）2, （s）]= - 1703. 90± 3.02KJ/mol .