Patent ID: 7781044

Claim:
An organic compound comprising the following general chemical structural formula (I): wherein A 1 and A 2 , each independently represent a substituted or a non-substituted cyclic alkyl group; B represents a single bond, an oxygen atom, a SO 2 or a CQ 1 Q 2 , wherein Q 1 and Q 2 , each independently represent a hydrogen atom, a C 1 -C 18 alkyl group, a C 3 -C 1o cyclo alkyl group or a phenyl group; X 1 and X 2 , each independently represent an oxygen atom or a C(CN) 2 ; X 3 and X 4 , each independently represent an oxygen atom posing one negative charge, an OH group or a C(CN) 2 ; Y 1 and Y 2 , each independently represent an oxygen atom, a CH 2 , an alkyl group or a N—R 7 , wherein R 7 is selected from the group consisting of a hydrogen atom, a substituted or a non-substituted alkyl group with carbon number 1-18 (C 1-18 ), a substituted or a non-substituted alkoxy group with carbon number 1-18 (C 1-18 ), a substituted or a non-substituted carboxyl group with carbon number 1-18 (C 1-18 ), a substituted or a non-substituted arylester, an adamantyl carbonyl group, an adamantyl group, and a substituted or a non-substituted aralkyl group; and R 1 and R 2 , each independently comprise a hydrogen atom, an azo group, a substituted polymethine group or a non-substituted polymethine group.