New indoaniline metal complex, process for their production, and transparent recording medium and optical recording medium by use thereof
申请人:NIPPON PAPER INDUSTRIES CO., LTD.
公开号:EP0737722A2
公开(公告)日:1996-10-16
An indoaniline metal complex of formula 1 or formula 2 having a large absorption in the near-infrared range and a reduced absorption in the visible range, which indoaniline metal complex is used in a transparent recording medium:
[CHEMICAL FORMULA 1]
[CHEMICAL FORMULA 2]
where M is a metal atom, and X is a negative ion.