作者:E. V. Kovaleva、L. A. Zemnukhova、N. Sh. Lebedeva、G. A. Fedorishcheva
DOI:10.1007/s11173-005-0067-5
日期:2005.3
1 by calorimetric titration. The equilibrium formation constants of complexes KSb2F7, KSbF4, and K2SbF5 (5.8×105±800, 3.3×104±500, and 1.9×106± 950, respectively) and the changes in enthalpy (−31.75± 0.74, −28.15±0.44, and −25.5±0.64 J mol−1, respectively) and entropy (4±7, −8±5, and −35±9 J mol−1 K−1, respectively) are determined. The thermodynamic stability of the antimony(III) fluoride complexes
通过量热滴定法研究了氟化物KF:SbF 3 =(0.1-2):1的摩尔比范围内的KF-SbF 3 -H 2 O系统中的络合。配合物KSb 2 F 7,KSbF 4和K 2 SbF 5的平衡形成常数(分别为5.8×10 5 ± 800、3.3 ×10 4 ±500和1.9×10 6 ±950)和焓变(分别为−31.75±0.74,−28.15±0.44和−25.5±0.64 J mol -1)和熵(4±7,−8±5和−35±9 J mol -1 K -1)。发现氟化锑(III)配合物的热力学稳定性从KSb 2 F 7变为K 2 SbF 5会增加。