Author/Authors :
Andreu ، نويسنده , , Raquel and Franco، نويسنده , , Santiago and Galلn، نويسنده , , Elena and Garيn، نويسنده , , Javier and Martيnez de Baroja، نويسنده , , Natalia and Momblona، نويسنده , , Cristina and Orduna، نويسنده , , Jesْs and Alicante، نويسنده , , Raquel and Villacampa، نويسنده , , Belén، نويسنده ,
Abstract :
A series of merocyanines containing isophorone or pyran rings in the spacer have been synthesized. For a given pair of donor and acceptor groups, the isophorone derivatives show higher second-order optical nonlinearities, but lower thermal stabilities. The first NLO-chromophores endowed with a dihydropyran fragment in the spacer have also been prepared and studied.
Keywords :
Isophorones , Pyrans , Nonlinear optics , thermal stability
