New one- and two-dimensional 4H-pyranylidene NLO-phores

作者：Andreu Raquel; Carrasquer Laura; Garin Javier^*; Jesus Modrego Maria; Orduna Jesus; Alicante Raquel; Villacampa Belen; Allain Magali

来源：Tetrahedron Letters, 2009, 50(24): 2920-2924.

DOI：10.1016/j.tetlet.2009.03.197

• 4H-Pyranylidene
• Fluorescence
• V-Shaped chromophores
• Nonlinear optics

Dipolar, V-shaped compounds derived from 4H-pyranylidene-linked acceptors have been synthesized, and their linear and nonlinear optical properties (displaying mu beta values up to 3000 x 10(-48) esu) have been compared to those of analogous one-dimensional derivatives. The pyranylidene ring behaves strictly as a spacer, and not as a donor group.

• 出版日期2009-6-17