Patent ID: 6100405
Filing Date: 2000-08-08
Classification: C07D,G02F

Abstract:
A two-photon absorbing chromophore of the formulaD--Ar--Awherein Ar is selected from the group consisting of ##STR12## wherein Fl is a fluorene group of the formula: ##STR13## wherein R.sub.1 and R.sub.2 are alkyl groups having 2 to 20 carbon atoms, and wherein R.sub.1 and R.sub.2 are the same or different;wherein D is ##STR14## wherein Q is selected from the group consisting of --H, --OH and --O--C,H.sub.2x+1, wherein x has a value of 1 to 10;and wherein A is selected from the group consisting of ##STR15##