OPTICAL INFORMATION RECORDING MEDIUM, METHOD OF RECORDING AND REPRODUCING INFORMATION, AND AZO METAL COMPLEX DYE
申请人:NAGASE Hisato
公开号:US20100002569A1
公开(公告)日:2010-01-07
An aspect of the present invention relates to an optical information recording medium comprising a recording layer on a surface of a support, wherein the surface of the support has pregrooves with a track pitch ranging from 50 to 500 nm, the recording layer comprises an azo metal complex dye in the form of a complex of at least one azo dye denoted by general formula (1) and at least one metal ion:
wherein, in general formula (1), Q
1
denotes an atom group forming a ring with two adjacent carbon atoms and a carbon atom bonded to —N═N-group, G
1
denotes a heterocyclic group or carbocyclic group, and R
1
denotes an alkyl group, alkenyl group, alkynyl group, aryl group, or heterocyclic group.