title: Nonlinear optical properties of diazabutadienes and -hexatrienes; experimental and computational aspects.
abstract: Donor-acceptor substituted diazabutadienes and -hexatrienes were prepared by straightforward procedures and their linear optical (UV-vis) and nonlinear optical second harmonic generation (SGH) properties investigated in a combined theoretical and experimental study. Theoretical and experimental results were in reasonable agreement. For the compounds in this study, which contained a p-nitrophenyl group as electron acceptor, the p-dimethylaminophenyl group was the most powerful electron-donating group, leading to the highest maximum absorption wavelengths, as well as to the maximum SHG efficiency.
authors.affiliation: Institute of Chemistry, University of Graz, Austria. renate.dworczak@uni-graz.at
authors.forename: Renate
authors.initials: R
authors.lastname: Dworczak
authors.forename: Walter M F
authors.initials: WM
authors.lastname: Fabian
authors.forename: Claudia
authors.initials: C
authors.lastname: Reidlinger
authors.forename: Alice
authors.initials: A
authors.lastname: Rumpler
authors.forename: Jörg
authors.initials: J
authors.lastname: Schachner
authors.forename: Klaus
authors.initials: K
authors.lastname: Zangger
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D002070:Butadienes / Q000737:chemistry*; D006834:Hydrazines / Q000737:chemistry; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D011090:Polyenes / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods
chemical_list: D000447:Aldehydes; D002070:Butadienes; D006834:Hydrazines; D007202:Indicators and Reagents; D011090:Polyenes; C029424:hydrazine