Compositions comprising an activated oil blend in a coordination entity are provided. Also provided are compositions comprising a haloalkane complex can be used as a refrigerant. The compositions can increase the energy efficiency and reduces leakage rates of refrigeration systems. Some compositions comprise at least 0.1 wt % of an oleic oil fatty acid, 0.1 wt % of a linoleic oil fatty acid, and at least 98 wt % of a heat transfer fluid including, for example R-134a. Some compositions comprise an oil blend comprising an oleic acid to linoleic acid ratio of approximately 60:1. At least some of the heat transfer fluid can be complexed with at least one of the organic oil fatty acids.