Alain, Valerie; Redoglia, Stephane; Blanchard-Desce, Mireille; Lebus, Sonja; Lukaszuk, Katarzyna; Wortmann, Rudiger; Gubler, Ulrich; Bosshard, Christian; Gunter, Peter published the artcile< Elongated push-pull diphenylpolyenes for nonlinear optics: molecular engineering of quadratic and cubic optical nonlinearities via tuning of intramolecular charge transfer>, Application of C19H34O2, the main research area is push pull diphenyl polyene nonlinear optic; intramol charge transfer push pull diphenyl polyene; dipole moment push pull diphenyl polyene; hyperpolarizability push pull diphenyl polyene.
Push-pull polyenes are of particular interest for nonlinear optics (NLO) as well as model compounds for long-distance intramol. charge transfer (ICT). In order to tune the ICT phenomenon and control the linear and nonlinear optical properties, we have synthesized and investigated several series of soluble push-pull diphenylpolyenes of increasing length and having various donor (D) and acceptor (A) end groups. Their linear and NLO properties have been studied by performing electro-optical absorption measurements (EOAM) and third-harmonic generation (THG) experiments in solution Each push-pull mol. exhibits an intense ICT absorption band in the visible characterized by an increase in dipole moment upon excitation (Δμ). By lengthening the polyenic chain, linear increases in excited-state dipoles are achieved while the ground-state dipole is maintained constant The polyenic chain thus allows for long-distance intramol. charge transfer. In addition, tuning of the magnitude of the ICT phenomenon and of the nonlinear responses is achieved by varying the donor and acceptor end groups: increasing the D/A strength leads to concomitant enhancements of Δμ, quadratic (β) and cubic (γ) hyperpolarizabilities values. Giant Δμ values (up to more than 30 D) and enhanced non-resonant quadratic and cubic NLO mol. responses (i.e. β(0)=500×10-30 esu and γ(0)=8000×10-36 esu) have been attained while maintaining suitable solubility, stability and transparency.
Chemical Physics published new progress about Bond order (alternation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics