Paracyclophane molecules for two-photon absorption applications
申请人:Bazan C. Guillermo
公开号:US20060208235A1
公开(公告)日:2006-09-21
Chromophores having two-photon or other multi-photon absorptivity. The chromophores are based on a structure of four stilbenoid groups attached to a paracyclophane core, where each stilbenoid group comprises a nitrogen-containing organic group attached by its nitrogen atom to a stilbenoid arm. In particular embodiments, at least one of the stilbenoid groups includes a sulfonium, ammonium, selenium, iodonium or phosphonium moiety. The chromophores have utility as photo-polymerization initiators and two-photon fluorophores for biological imaging.
Solvatochromism of Distyrylbenzene Pairs Bound Together by [2.2]Paracyclophane: Evidence for a Polarizable “Through-Space” Delocalized State
作者:Janice W. Hong、Han Young Woo、Bin Liu、Guillermo C. Bazan
DOI:10.1021/ja044326+
日期:2005.5.25
compounds were designed and synthesized to examine how through-space and through-bond electron delocalization respond to solvent effects. The general strategy involves the study of "dimers" of the distyrylbenzene chromophore held in close proximity by the [2.2]paracyclophane core and a systematic dissection of the chromophore into components with through-space and through-bond electronic delocalization. Steady
Optical article containing a polymeric matrix exhibiting a high level of
申请人:Eastman Kodak Company
公开号:US04796971A1
公开(公告)日:1989-01-10
An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10.sup.-9 electrostatic units comprised of organic polar aligned noncentrosymmetric molecular dipoles. The molecular dipoles form repeating units in a crosslinked polymeric matrix.
Optical article exhibiting a high level of second order polarization
申请人:Eastman Kodak Company
公开号:US04792208A1
公开(公告)日:1988-12-20
An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10.sup.-9 electrostatic units comprised of polar aligned noncentrosymmetric molecular dipoles. The molecular dipoles have an electron donor moiety linked through a conjugated .pi. bonding system to an electron acceptor sulfonyl moiety.