1. Afdeling
Kwantumchemie en Fysicochemie, Departement Chemie, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Heverlee-Leuven, Belgium
2. Department
of Chemistry, The University of Dalat, 01 Phu Dong Thien Vuong, Ward 8, 670000 Dalat City, Lam Dong, Vietnam