CAJ | 학술논문

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(ΔdissHθm=-43.607 kJ·mol-1)及溶解焓(ΔdissH)的经验公式(ΔdissH=-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(ΔdilH1,2)的经验公式: Φli=-454.98b+9378.2b1/2,Li=-909.96b+14067.3b1/2和ΔdilH1,2=-454.98(b1/22-b1/21)+9378.2(b2-b1).
용미열량의대배합물[Mn(SCZ)3](PA)2·H2O재용제N,N-이갑기갑선알(DMF)중불동농도(b)시적용해함진행료측정,용계산궤의합적방법구득해배합물적표준마이용해함(ΔdissHθm=-43.607 kJ·mol-1)급용해함(ΔdissH)적경험공식(ΔdissH=-43.607-454.98b+9378.2b1/2).유차득도배합물적상대표관마이함(Φli)、상대편마이함(Li)이급배합물적희석함(ΔdilH1,2)적경험공식: Φli=-454.98b+9378.2b1/2,Li=-909.96b+14067.3b1/2화ΔdilH1,2=-454.98(b1/22-b1/21)+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 C80Ⅱ calorimeter. The standard molar enthalpy of dissolution was determined to be ΔdissHθm=-43.607 kJ·mol-1. The empirical formulae for calculating the enthalpies of dissolution (ΔdissH=-43.607-454.98b+9378.2b1/2) 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 (ΔdilH1, 2) were obtained respectively from the experimental data of the enthalpies of dissolution of the coordination compound: Φli =-454.98b+9378.2b1/2, Li=-909.96b+14067.3b1/2 and ΔdilH1, 2=-454.98(b1/22-b1/21)+9378.2(b2-b1).