Thermochemical Properties of Ph4Sb(OC(O)C10H15) and Ph3Sb(OC(O)C10H15)2

The energy of combustion of crystalline adamantanecarboxylate of tetraphenylantimony and triphenylantimony bis(1-adamantanecarboxylate) is determined at 298.15 K using a combustion calorimeter with a static bomb. The combustion enthalpies of these substances in the crystalline state at 298.15 K are calculated using the obtained experimental data. Such standard functions of formation as ΔfH° and ΔfG° are calculated for the studied compounds in the crystalline state at 298.15 K. The obtained thermochemical properties are analyzed, and their dependences on the molar mass of the substituent with antimony are determined.