Abstract
Molecular and crystal structures of three compounds with electron donor-conjugation unit-electron acceptor framework are reported where the conjugation unit is formally a quinonoid ring. Semiempirical quantum chemical calculations indicate large hyperpolarizabilities in these push-pull molecules. Since all the crystal structures are found to belong to centrosymmetric space groups, modifications are necessary for quadratic nonlinear optical applications.
Original language | English |
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Pages (from-to) | 225-232 |
Number of pages | 8 |
Journal | Structural Chemistry |
Volume | 7 |
Issue number | 3 |
DOIs | |
State | Published - Jun 1996 |
Keywords
- Crystal structures
- Hyperpolarizability
- Nonlinear optics
- Push-pull quinonoids