1. Department of Chemistry, Saint Petersburg State University, 198504 Stary Petergof,
Russian Federation
2. Centro
de Química Estrutural,
Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001
Lisbon, Portugal
3. Department
of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014, Jyväskylä, Finland
4. Institute of Macromolecular Compounds of Russian Academy of Sciences, V. O. Bolshoii
Pr. 31, 199004, Saint Petersburg, Russian Federation