| 摘要 |
NEW MATERIAL:A compound expressed by formula I (X and Y are H, alkyl, halogen, alkoxy, acyl, etc.; M is transition metal; m and n are 1-4; R1-R4 are alkyl, alkoxy, aryl or aralkyl). EXAMPLE:Bis(3,5,6-trichloro-1,2-benzenedithiolate)nickel-tri(n-hexyl)e thylphospho nium complex. USE:An optical information recording media. The above-mentioned compound has absorbing ability in the near-infrared ray range and is simultaneously readily soluble in an organic solvent and has excellent coating film forming ability and light resistance. PREPARATION:A compound expressed by formula II (A<+> is quaternary ammo nium cation or alkali metal cation) is reacted with a compound expressed by formula III (B is an anion of halogen, etc.) in a mixed solvent such as toluene- water at ambient temperature to provide the compound expressed by formula I. |
