Optical recording medium and process for the production thereof

Claim 1

An optical recording medium which comprises an organic thin film layer containing at least one of phthalocyanine compounds represented by the following general formula (I) ##STR13## wherein rings A 1 to A 4 each independently represent a benzene ring, naphthalene ring or anthracene ring, M represents Al, Ga, In, Si, Ge or Sn, X's may be identical or different, and each represents an alkyl group which may have a substituent, an aryl group which may have a substituent, a heteroring moiety which may have a substituent, a phthalimidomethyl group which may have a substituent, a halogen atom, a nitro group, a cyano group, a sulfonic acid group, --OR 1 , --SR 2 , --COOR 3 , ##STR14## ##STR15## in which R 1 to R 11 may be identical or different, and each represents a hydrogen atom, an alkyl group which may have a substituent, an aryl group which may have a substituent, an acyl group which may have a substituent, a cycloalkyl group which may have a substituent, or a polyether group which may have a substituent, or R 6 and R 7 , R 8 and R 9 or R 10 and R 11 may form a four to seven-membered heteroring, and these four to seven-membered ring may further contain a nitrogen atom, oxygen atom or sulfur atom, and R 12 , R 13 and R 14 may be identical or different, and each represents an alkyl group which may have a substituent, a cylcoalky group which may have a substituent, or an aryl group which may have a substituent, ##STR16## or --O--Se--R 23 , and Z represents hydrogen, a halogen atom, a hydroxyl group, an alkyl group which may have a substitutent, ##STR17## in which R 15 , R 16 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 and R 32 may be identical or different, and each represents an alkyl group which may have a substituent, an aryl group which may have a substituent, an acyl group which may have a substituent, a cycloalkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, a polyether group which may have a substituent, a hydroxyl group, or a halogen atom, and in which R 17 , R 18 , R 19 , R 20 , R 28 , R 29 , R 30 and R 31 may be identical or different, and each represents an alkyl group which may have a substituent, an aryl group which may have a substituent, an acyl group which may have a substituent, a cycloalkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, a polyether group which may have a substituent, a hydroxyl group, a halogen atom or a hydrogen atom, and W represents O, S, Se or Te, k, l, m and n each independently represent an integer of 0 to 8, and p represents 0 or 1.