Deussen, H.-J.; Hendrickx, E.; Boutton, C.; Krog, D.; Clays, K.; Bechgaard, K.; Persoons, A.; Bjornholm, T. published the artcile< Novel Chiral Bis-dipolar 6,6'-Disubstituted Binaphthol Derivatives for Second-Order Nonlinear Optics: Synthesis and Linear and Nonlinear Optical Properties>, Application of C19H34O2, the main research area is binaphthalenediol chiral dipolar preparation nonlinear optic; second harmonic generation binaphthalenediol chiral dipolar; hyperpolarizability binaphthalenediol chiral dipolar preparation.
A number of thermally and optically stable, bis-dipolar chiral mols. based on two geometries of the binaphthol (BN) system with different acceptors/substituents were synthesized for the first time, and the synthetic routes were reported. Examples for the target compounds were vinylbinaphthol derivatives I (R, R1 = cyano, ethoxycarbonyl, etc.) and II (same R, R1). All mols. possess two equal donor-acceptor systems linked together to give a bis-dipolar system. Two mono-dipolar 6-substituted 2-butoxynaphthalene (R = -CH:C(CN)2, -CH:C(CN)(COOEt)) donor-acceptor systems were prepared as references The linear optical properties including solvatochromic shifts of absorption and fluorescence revealed strong charge transfer excitations in the new dipolar systems. The mols. show a high first hyperpolarizability 灏?(up to (344-364) 鑴?10-30 esu) as measured by elec.-field-induced second-harmonic generation (EFISHG) and hyper-Rayleigh scattering (HRS). A model was developed to express the first hyperpolarizability of the bis-dipolar mols. in terms of the mol. geometry and the 灏?of the monomeric donor-acceptor units. The tensor components were determined exptl. using this model and data from HRS and EFISHG. These techniques probed different combinations of the components of the mol. hyperpolarizability tensor. The results obtained were found to be in excellent mutual agreement.
Journal of the American Chemical Society published new progress about Fluorescence. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
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