caa a22 4500 465807607 CHVBK 20180323112107.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF00529978 doi (NATIONALLICENCE)springer-10.1007/BF00529978 Photoconversion of lutetium diphthalocyanine and interpretation of its electronic absorption spectra [Elektronische Daten] [V. Maslov, T. Prokof'eva, A. Sidorov] When frozen solutions of lutetium diphthalocyanine (LuPC2) in a mixture of methylene chloride with trichloroethylene are irradiated by UV light, monocations of LuPC2 form. The photoreaction is slowed and ceases in an early stage apparently due to the reversibility of the photoconversion in this system. The reduced form of LuPC2 (its monoanions) are completely converted into the neutral form of LuPC2 during irradiation. When this photoconversion is carried out in a frozen solution, the electronic absorption bands in the spectrum of the LuPC2 formed are displaced in comparison to the bands of the original substance under the same conditions, posibly due to the difference between the structures of the solvation shells. An interpretation of the electronic absorption spectrum of LuPC2 in the 300-1600-nm region has been given on the basis of the scheme of the molecular orbitals of sandwich phthalocyanine dimer with one π-electronic vacancy. Plenum Publishing Corporation, 1990 Maslov V. Leningrad aut Prokof'eva T. Leningrad aut Sidorov A. Leningrad aut Theoretical and Experimental Chemistry Kluwer Academic Publishers-Plenum Publishers 25/5(1990-09-01), 564-568 0040-5760 25:5<564 1990 25 11237 https://doi.org/10.1007/BF00529978 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00529978 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maslov V. Leningrad aut NATIONALLICENCE 700 1- Prokof'eva T. Leningrad aut NATIONALLICENCE 700 1- Sidorov A. Leningrad aut NATIONALLICENCE 773 0- Theoretical and Experimental Chemistry Kluwer Academic Publishers-Plenum Publishers 25/5(1990-09-01), 564-568 0040-5760 25:5<564 1990 25 11237 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer