1. Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russian Federation
2. Center for Optical and Laser Materials Research, Saint Petersburg State University, 5 Ulianovskaya Street, 198504 Saint Petersburg, Russian Federation
3. Institute of Inorganic Chemistry, Leipzig University, Johannisallee 29, D-04103 Leipzig, Germany