Experimental and theoretical investigations of spectroscopic properties of azobenzene derivatives in solution.
The UV-Vis spectra of series of polymethylmethacrylate (PMMA) copolymers with attached trans-azobenzene derivatives were measured in 1,1,2-trichloroethane. In order to gain some insight into the recorded spectra, the quantum chemical calculations were performed for the substituted azobenzenes using both configuration interaction with single excitations method (CIS) as well as density functional theory (DFT) with B3LYP and PBE0 functionals. The calculations were performed in solvent. In particular, we found that the PBE0 excitation energies are in very good agreement with the experimental data.
Zaleśny
Robert
R
Department of Physical Chemistry, Collegium Medicum, Nicolaus Copernicus University, Kurpińskiego 5, 85-950, Bydgoszcz, Poland. robert.zalesny@cm.umk.pl
Matczyszyn
Katarzyna
K
Kaczmarek
Anna
A
Bartkowiak
Wojciech
W
Cysewski
Piotr
P
D001391:Azo Compounds / Q000032:analysis* / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D019904:Polymethyl Methacrylate / Q000032:analysis / Q000737:chemistry; D011789:Quantum Theory; D012996:Solutions / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D014240:Trichloroethanes / Q000737:chemistry
D001391:Azo Compounds; D012996:Solutions; D014240:Trichloroethanes; C024567:1,1,2-trichloroethane; D019904:Polymethyl Methacrylate; C009850:azobenzene