The combustion energy of crystalline copper(II) pivalate was determined by static-bomb isoperibolic calorimetry. The standard enthalpy of formation was calculated on basis of obtained results. The value of standard enthalpy of formation was used to calculate the enthalpy of breaking bond Cu-Piv by the reaction: Cu(C5H9O2)(2)(cr) = Cu(cr) + 2C(5)H(9)O(2)(g) and the enthalpy of formation of the trimer Cu-3(Piv)(6) in the gaseous state. (C) 2018 Elsevier Ltd.