Patent DE-10253610-A1 (DE)
Title: Optical data carriers have information layers containing axially-substituted light-absorbing cobalt (III) phthalocyanine compounds, some of which are new
Inventor: BERNETH HORST
IPC: G11B7/248
Filed: 2002-11-15
Abstract: Optical data carriers have in their information layers a light- absorbing cobalt (III) phthalocyanine compound in which the central cobalt atom has an axial substituent and an axial co-ordinatively bonded ligand.  Optical data carriers have in their information layers a light-absorbing cobalt (III) phthalocyanine compound in which the central cobalt atom has an axial substituent R1 and an axial co-ordinatively bonded ligand R2. R1  = CN, SCN, halogen (especially Cl, Br or F), alkoxy, aryloxy, arylthio or alkylthio; and R2 = no ligand, optionally substituted amine, water, alcohol, H2S thioalcohol or isonitrile. Independent claims are also included for novel compounds of formula (Ia) and their preparation and for mixtures of the axially-substituted phthalocyanines with different phthalocyanines of formula (Ib). X1-(CH=CH)n-Y1- (III) +X2=(CH-CH)n=+Y2- (Red) (IV) -(CH=CH)n-  (Ox) (V) =(CH=CH)n= (VI) Halogen  = Cl, Br or F; Alkoxy  = optionally substituted 1-6C alkoxy; a  = 0- 4; b  = 0-10; c  = 0-8; a + b + c = at most 12; R1 = CN, SCN, halogen, alkoxy, aryloxy, arylthio or alkylthio; R2 = no ligand, NR17R18R19, OR10R11, SR10R11 or an isonitrile of formula (II); R3 - R6 = halogen, cyano, nitro, alkyl, aryl, alkylamino, dialkylamino, alkoxy, aryloxy, arylthio, alkylthio, SO3H, SO2NR7R8, CO2R12, CONR7R8, NHCOR12 or -(B)m-D; B = a bridging member comprising a direct bond, CH2, CO, CH(alkyl), C(alkyl)2, NH, S, O or CH:CH; m = 1-10 (especially 1); D = a monovalent residue of a redox system of formula (III) or (IV) or a metallocenyl or metallocenylcarbonyl residue with titanium, manganese, iron, ruthenium or osmium central metal atom; X1 and X2 = NR'R', OR'' or SR''; Y1 = NR', O or S; Y2 = NR'; n = 1-10; R' and R'' = H, alkyl, cycloalkyl, aryl, hetaryl, a direct bond or a bridge to a carbon atom forming a chain of formula (V) or (VI); w, x, y and z = 0-4, with w + x + y + z being at most 12; R7 and R8 = alkylamino, hydroxyalkylamino, dialkylamino, bishydroxyalkylamino or arylamino or together with the N atom to which they are bonded form a 5-, 6- or 7-membered ring optionally also containing further heteroatoms (especially N, O or S), with NR7R8 especially being pyrrolidino, piperidino or morpholino; R10 and R11 = H, alkyl or aryl or together with the O or S atom to which they are bonded form an aromatic, quasi-aromatic or partially- or per-hydrogenated heterocyclic 5-, 6- or 7-membered ring optionally with further heteroatoms (especially N, O or S); R12 = alkyl, aryl, hetaryl or H; R17 - R19 = H, alkyl, aryl or hetaryl or NR17R18R19 forms an aromatic, quasi- aromatic or partially- or per-hydrogenated heterocyclic 5-, 6- or 7-membered ring optionally with further heteroatoms (especially N, O or S); R = alkyl or aryl; and Kat = a cation comprising lithium, sodium, potassium, tetrabutylammonium, tetrapropylammonium, tetraethylammonium, tetramethylammonium, triethyloxonium, triphenylcarbonium, diphenyliodinium, N-ethylpyridinium or ferrocene.