1. Department of Physical Chemistry of Fossils Fuels Institute of Physical Organic Chemistry and Chemistry of Coal NAS of Ukraine Naukova Str., 3A Lviv 79060 Ukraine
2. Company «Oliyar» 81118 v. Stavchany, Lviv Region Ukraine
3. Department of Chemistry Rzeszow University of Technology P.O. Box 85 35-959 Rzeszow Poland
4. Institut de Chimie Moléculaire de Reims UMR 6229 UFR des Sciences Exactes et Naturelles CNRS – Université de Reims Champagne-Ardenne BP 1039 51687 Reims Cedex 2 France