| abstract |
A data storage medium containing at least one cyanine-tetracyanoquinodimethane (cyanine-TCNQ complex dye, said cyanine-TCNQ complexing dye containing a TCNQ molecule chemically linked to a cyanine molecule and having a structural formula (I) as follows: wherein Q and Q 'are selected from an aromatic and polyaromatic group, R1 is selected from the group consisting of aryl ester, alkoxy, alkylthio and alkoxythio and R2 is selected from the group consisting of alkyl, aryl, alkoxy, alkylthio and alkoxythio, n represents an integer 0, 1, 2 and 3, TCNQ-m represents 7,7 ', 8,8'-tetracyanoquinodimethane and its derivatives, and m represents an integer 1 or 2. |