Patent ID: 8535643
Filing Date: 2013-09-17
Classification: C08G,C09K,G01N

Abstract:
1. Fluorescent chemical compound formed by a dendrimer of n generation(s), in which n is a non-zero integer, having: at least one central core (N) of valence m chosen from the group consisting of: wherein R and R′ are identical or different and designate a radical chosen from the group consisting of hydrogen, and C at least one first non-chromophoric pattern (X) of valence m′ chosen from the group consisting of: m patterns (X) being directly bound to said central core (N) and/or x patterns forming at least one generation of said dendrimer; and at least one second pattern (Y) having two-photon absorption properties, of valence m″, m chromophoric patterns (Y) being directly bound to said central core (N) and/or y patterns (Y′) belonging to, or forming at least one generation of said dendrimer, in which said chromophoric pattern (Y) is formed by a multiphoton chromophoric radical (Y1) bound to at least one grafting appendage (Y2). in which said chromophoric radical (Y1) has one of the following two structures: in which F wherein R A and in which, R R Z Z Z Z Z q being an integer between 1 and 7; r being an integer between 1 and 7; s being an integer between 0 and 7; t being an integer between 1 and 7; W being CH or B or N or P or PO, and, said grafting appendage (Y2) is chosen from: R with m2 being an integer between 0 and 12; Z Z