HYDRAZIDE CHELATE COMPLEX COMPOUND, OPTICAL RECORDING MEDIUM USING THE COMPOUND AND RECORDING METHOD THEREOF

摘要

Disclosed is a novel hydrazide chelate complex compound excellent in both solubility in a coating solvent and light resistance, which is applicable to a blue laser recording and useful as a dye for forming a recording layer of an optical recording medium. The hydrazide chelate complex compound is represented by the general formula (1) below. Also disclosed is a dye for forming a recording layer of an optical recording medium, which contains this compound. (1) In the formula, ring A represents an aromatic ring; R<SUP>1</SUP> and R<SUP>6</SUP> respectively represent an aromatic ring group or a monovalent non-aromatic ring substituent having 20 or less carbon atoms; R<SUP>2</SUP>-R<SUP>5</SUP> respectively represent a hydrogen atom, an aromatic ring group or a monovalent non-aromatic ring substituent having 20 or less carbon atoms; n represent 0 or 1; a represents a number of 1-3; M represents a transition metal atom; and X represents a group 14-16 element atom of the periodic table.