6533b824fe1ef96bd127ff11
RESEARCH PRODUCT
Electron crystallography and organic materials with non-linear optical properties
Ri-cheng YuGalina MatveevaGalina MatveevaUte KolbH. KotheI. G. Voigt-martinAlexander V. YakimanskiAlexander V. YakimanskiAndrey V. Tenkovtsevsubject
chemistry.chemical_classificationPolymers and PlasticsElectron crystallographyOrganic ChemistryPhysics::OpticsHyperpolarizabilitySecond-harmonic generationNonlinear opticsPolymerCrystal structureCondensed Matter PhysicsCrystalCrystallographyElectron diffractionchemistryMaterials Chemistrydescription
Results of electron microscopic studies of crystal structures of a number of bis-benzylidene cyclohexanones are presented. It is shown that some of these compounds are efficient crystalline non-linear optically active (NLO) chromophores with second harmonic generation (SHG) properties. Appropriately functionalized chromophores of this type can be used as a polycondensation comonomer to produce partly crystalline main-chain NLO-active polymers. Electron diffraction crystal structural data, obtained for very small crystals, allowed us to get reasonable estimations of macroscopic crystal NLO-coefficients, relating quantum-chemically calculated molecular first hyperpolarizability components to crystal axes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-11-01 | Macromolecular Symposia |