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Article Dans Une Revue Chemical Physics Letters Année : 2002

Nonlinear optical properties of polychlorotriphenylmethyl radicals: towards the design of "super-octupolar" molecules

Résumé

Molecular quadratic hyperpolarizability (βc) of substituted polychlorinated triphenylmethyl radicals, 1-8, has been determined by using the harmonic light scattering (HLS) technique. Results showed that this opens-shell family known to possess a good chemical stability also exhibited a very large SONLO response. The presence of a permanent dipole moment in the ground state for some of these octupolar compounds makes them attractive candidates for further orientation by the poling technique. Data of compounds 1-8 have been discussed on the basis of a model describing the evolution of the βc response for D3h and C2v symmetry groups.

Domaines

Matériaux

Dates et versions

hal-00733938 , version 1 (20-09-2012)

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Citer

Imma Ratera, Silvia Marcén, S. Montant, Daniel Ruiz-Molina, Concepció Rovira, et al.. Nonlinear optical properties of polychlorotriphenylmethyl radicals: towards the design of "super-octupolar" molecules. Chemical Physics Letters, 2002, 363 (3-4), pp.245-251. ⟨10.1016/S0009-2614(02)01059-X⟩. ⟨hal-00733938⟩

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