“Petru Poni” Institute of Macromolecular Chemistry, Romanian Academy, Group of Biospectroscopy, Aleea Grigore Ghica 41-A, RO-700487 Iasi, Romania
“Costin D. Nenitescu” Centre of Organic Chemistry, Romanian Academy, Group of Biospectroscopy, Spl. Independentei 202-B, RO-060023 Bucharest, Romania