| 摘要 |
For manufacturing particularly uniform and mirror bright copper coatings tha t are leveled and ductile as well using a relatively high current density, halogenated or pseudohalogenated monomeric pheanzinium compounds or a purity at least 85 mole-% and having the general chemical formula (I) are utilized in which R1, R2, R3, R4. R5, R6, R7, R7~~, R8, R9, X and A.macr.have the significations denoted in the claims. The compounds are prepared by diazotizing a suited starting compound prior to halogenating or pseudohalogenating it in the presence of mineral acid, diazotization means a nd halide or pseudohalide, with the reaction steps being run in one single vess el.
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