1. Department of Chemistry, Bozok University, Yozgat, Turkey
2. Department of Chemistry, Ankara University, Tandoğan, Ankara, Turkey
3. Department of Chemistry, Université de Montréal, Montréal, Québec, Canada
4. Department of Chemistry, Anadolu University, Yenibağlar, Eskişehir, Turkey
5. Department of Physics, Hacettepe University, Beytepe, Ankara, Turkey