Abstract
Molecular polarizabilities and hyperpolarizabilities of a series of octupolar molecules that are donor-substituted triphenylmethane dyes are calculated. The four-state model of an octupolar molecule is used to describe the nonlinear optical properties of this type of molecules. As the charge- transfer character of the ground state is increased by using a strong donor, both the molecular polarizability and first hyperpolarizability increase monotonically. These patterns are in strong contrast with those exhibited by the linear push-pull polyene. On the basis of these results, it is suggested that a common strategy to maximize the molecular polarizability can also be used to optimize the first hyperpolarizability in the case of octupolar molecules such as triphenylmethane dyes.
Original language | English |
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Pages (from-to) | 10921-10927 |
Number of pages | 7 |
Journal | Journal of the American Chemical Society |
Volume | 120 |
Issue number | 42 |
DOIs | |
Publication status | Published - 1998 Oct 28 |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry