| 摘要 |
PROBLEM TO BE SOLVED: To provide a gold compound having no cyan useful as a gold source for non-electrolytic and electrolytic plating liquid.SOLUTION: There is provided a gold compound represented by the general formula (1), which is a crystal obtained by suspending alkali metal salts such as sodium first gold compound chloride synthesized form chloroauric acid, alkali metal salt and an organic compound having a thiol group in an aqueous solution, then reacting them under a condition of pH of 7.0 to 13.5 and temperature of 10 to 90°C in a presence of inert gas such as argon gas or nitrogen gas, column purifying deposited crystal by alcohol after a reaction end. The gold compound is available as a gold source for non-electrolytic and electrolytic plating liquid having no cyan in a plating bath. (1), where R represents a monovalent alkyl group, an aryl group, an alkenyl group, a silyl group, an alkynyl group and a monovalent hydrocarbon cyclic or heterocyclic aromatic organic group and a part of hydrogen atoms on a ring may be substituted by a group which has no participation in a reaction.SELECTED DRAWING: None |
