Optical recording medium containing violanthrene compounds, and novel violanthrene compounds

摘要

An optical recording medium containing a support (base, carrier) and a thin radiation-sensitive coating film containing dye and optionally binder, in which the dye has the formula <IMAGE> where Z is nitrogen or CH, L is oxygen, sulphur, optionally substituted imino or a malononitrile, cyano acetate or malonate radical, and X, Y, m and n are each as defined in the description, and novel violanthrene compounds of the formula <IMAGE> where L<1> and R<3> are as defined in the description.r