1. Institute of Chemistry, Saint Petersburg State University, 198504 Stary Petergof, Russian Federation, http://ptchemin.chem.spbu.ru
2. Department of Chemistry, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei, Taiwan
3. Department of Chemistry, University of Jyväskylä, P. O. Box 35, 40014 Jyväskylä, Finland
4. Institute of Macromolecular Compounds of Russian Academy of Sciences, Bolshoii Pr. 31, 199004 Saint Petersburg, Russian Federation