Optical information-recording medium, method for recording information, and compound

摘要

A first optical information-recording medium has, on a first substrate, a first write-once type recording layer capable of recording information by being irradiated with a laser beam of not more than 440 nm, wherein the first write-once type recording layer contains a metal complex having a ligand of a compound represented by the following general formula (I): wherein Z represents: wherein each of X, Y¹, Y² independently represents an atom group for forming a five-membered or six-membered heterocyclic ring which may be condensed.