Thermal studies on solid complexes of silver nitrate with substituted pyridines
作者:Abbas Akhavein、J.E. House
DOI:10.1016/0022-1902(70)80634-0
日期:1970.5
The kinetics of decomposition of several solid complexes of silvernitrate with substituted pyridines has been studied. Activation energies have been determined and, in general, show an increase with increasing basicity of the ligands. A linear relationship exists between the logarithm of the rate constants for decomposition at 400°K and the pKa values of the bases, except for those containing a substituent
已经研究了硝酸银与取代的吡啶的几种固体配合物的分解动力学。已经确定了活化能,并且活化能通常随着配体碱度的增加而增加。除了在4位含有取代基的碱之外,在400°K时分解速率常数的对数与碱的p K a值之间存在线性关系。2,4-和3,4-二甲基吡啶配合物的稳定性比预期基于P ķ一个碱基的值,并用4-氰基吡啶的复合物是更稳定比从配位体的碱度预期。根据金属-配体键的性质讨论了这些观察结果。