1. Department of Chemistry, Saint Petersburg State University, Universitetskiy pr., 26, 198504 Saint Petersburg, Russian Federation
2. Centro de Quı́mica
Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
3. Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
4. Department of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
5. Institute of Macromolecular Compounds of the Russian Academy of Sciences, V.O. Bolshoi Pr. 31, 199004 Saint Petersburg, Russian Federation