Patent ID: 6284877
Filing Date: 2001-09-04
Classification: C07D,C09B,G11B,Y10S

Abstract:
A metal chelate compound obtained from an azo compound of the following formula [a] or [b] and a metal salt: ##STR105##wherein each of A.sub.2 and A.sub.3 is a residue forming, together with the carbon atom and the nitrogen atom to which A.sub.2 or A.sub.3 is bonded, a heterocyclic ring which may have a substituent, B.sub.1 is a residue forming, together with the carbon atoms to which B.sub.1 is bonded, an aromatic or heterocyclic ring which may have a substituent, and Y is a C.sub.1-6 linear or branched alkyl group substituted by at least two fluorine atoms.