635680-79-4

Upstream product

• 623-00-7 4-bromobenzenecarbonitrile 
• 3837-38-5 2,6-dimethylanthracene-9,10-dione 

Downstream Products

• 635680-89-6 2,6-bis[(diethoxyphosphoryl)methyl]-9,10-bis(p-cyanophenyl)anthracene 
• 872034-34-9 9,10-bis(p-cyanophenyl)-2,6-bis(bromomethyl)anthracene 

Relevant academic research and scientific papers

2,6-Bis(styryl)anthracene derivatives with large two-photon cross-sections

The first synthesis of 2,6-bis(styryl)anthrance derivatives with very large two-photon cross sections is reported.

Two-photon absorption properties of 2,6-bis(styryl)anthracene derivatives: Effects of donor-acceptor substituents and the π center

A series of 2,6- and 2,7-bis-(styryl)anthracene derivatives with the donors at the styryl group and acceptors at the 9,10-positions have been synthesized, and their two-photon cross sections (φδmax) were determined. These compounds exhibit a peak two-photon absorptivity (δmax) in the range of 700-2500 GM at 780-1030 nm. Values of λmax and Stokes shifts increase as the acceptor is changed to a stronger one. There is also a parallel increase in λmax (2) and δmax with the same variation of the chromophore structure. Both λmax(2) and φδmax have been optimized by introducing donor-substituted styryl groups at the 2,6-positions and p-cyanophenyl groups at the 9,10-positions, respectively. The effect of a π center on the two-photon absorption properties has been assessed by comparing the existing data for a variety of D-π-D derivatives.