[Mn(SCZ)_3](PA)_2·H_2O在DMF中的溶解焓(英文)

Enthalpies of Dissolution of [Mn(SCZ)_3](PA)_2.H_2O in DMF

用微热量仪对配合物[Mn(SCZ)3](PA)2.H2O在溶剂N,N-二甲基甲酰胺(DMF)中不同浓度(b)时的溶解焓进行了测定,用计算机拟合的方法求得该配合物的标准摩尔溶解焓(Δd issHmθ=-43.607 kJ.mol-1)及溶解焓(Δd issH)的经验公式(Δd issH=-43.607-454.98b+9378.2b1/2)。由此得到配合物的相对表观摩尔焓(ΦLi)、相对偏摩尔焓(Li)以及配合物的稀释焓(Δd ilH1,2)的经验公式:ΦLi=-454.98b+9378.2b1/2,Li=-909.96b+14067.3b1/2和Δd ilH1,2=-454.98(b12/2-b11/2)+9378.2(b2-b1)。

The molar enthalpies of dissolution of [ Mn （SCZ） 3 ] （PA） 2 · H2O in N, N-dimethylformamide （DMF） at 298.15 K were measured by means of a SETARAM C80 Ⅱ calorimeter. The standard molar enthalpy of dissolution was determined to be △diss Hm^∞=-43.607kJ·mol^-1. The empirical formulae for calculating the enthalpies of dissolution （△dissH = -43. 607 -454.98b ＋ 9378.2b^1/2） of the title coordination complex at different concentrations b （mol· kg^-1） was obtained. Relative apparent molar enthalpy （ΦLi）, relative partial molar enthalpy （Li） and enthalpy of dilution （△dilH1.2 ） were obtained respectively from the experimental data of the enthalpies of dissolution of the coordination compound： ΦLi = - 454.98 b ＋ 9378.2b^1/2 , Li = - 909.96b ＋ 14067.3b^1/2 and △dilH1.2 = - 454.98 （ bx^1/2 - b1^1/2 ） ＋ 9378.2 （ b2 - b1 ）.