| 摘要 |
Metal-azo dyes with excellent solubility in organic media are provided. The metal-containing dyes of the present invention have a nucleus of the formula: <CHEM> wherein: Z1 and Z2 each independently represents an arene nucleus having from 5 to 14 ring atoms; G1 and G2 each independently represent a metal ligating group, wherein G1 and G2 may be contained within or pendant from at least one of Z1 and Z2; R represents a hydrogen atom, a halogen atom, an alkyl group, an acylamino group, an alkoxy group, a sulfonamido group, an aryl group, a thiol group, an alkylthio group, an arylthio group, an alkylamino group, an arylamino group, an amino group, an alkoxycarbonyl group, an acyloxy group, a nitro group, a cyano group, an alkylsulfonyl, an arylsulfonyl group, an alkylsulfoxyl group, an arylsulfoxyl group, an aryloxy group, a hydroxy group, a thioamido group, a carbamoyl group, a sulfamoyl group, a formyl group, an acyl group, a ureido group, an aryloxycarbonyl group, a silyl group, or a sulfoalkoxy group; L1 represents a trialkyl or triaryl phosphine ligand; or L1 represents a pyridine ring group free of free-radically polymerizable functionality, and free of substitution at the 2- and 6- positions and at least one of the 3-, 4-, 5-positions of the pyridine ring group are substituted with R1, wherein; R1 represents an alkyl group, an acylamino group, an alkoxy group, a sulfonamido group, an aryl group, an alkylthio group, an alkylamino group, an alkoxycarbonyl group, an acyloxy group, an alkylsulfonyl group, an alkylsulfoxyl group, an alkylcarbamoyl group, an alkylsulfamoyl group, a formyl group, an acyl group, a silyl group, or a sulfoalkoxy group; L2 represents a non-free-radically polymerizable monodentate or polydentate ligand; X represents nitrogen or a methine group; M is a divalent or polyvalent transition metal ion where the coordination number is at least four, and k, m, and n are whole numbers less than or equal to 3. Dye-donor sheets comprising the abovementioned dyes are also disclosed. <IMAGE> |
