1. Department of Organic Chemistry , Center for Physical Sciences and Technology , Saulėtekio Ave. 3, LT-10257 , Vilnius , Lithuania
2. Faculty of Chemistry and Geosciences, Vilnius University , Naugarduko st. 24, 03225 , Vilnius , Lithuania
3. Department of Chemistry , Ludwig-Maximilian University of Munich , Butenandtstr. 5–13 (D), 81377 Munich , Germany