Abstract
The heat of combustion of a copper complex with 2,7,12,17-tetramethyl-3,8,13,18-tetraethylporphine was measured in an isothermal liquid calorimeter with a stationary calorimetric bomb. The standard enthalpies of combustion and formation of the complex studied were calculated (Delta(c)Hdegrees = -21694.77 +/- 12.54 kJ/mol, Delta(f)Hdegrees = 3796.59 +/- 12.60 kJ/mol).