YAKUGAKU ZASSHI
Online ISSN : 1347-5231
Print ISSN : 0031-6903
ISSN-L : 0031-6903
ジメチルホルムアミド中の二価銅とアミンの錯体生成反応
菅田 節朗松島 美一
著者情報
ジャーナル フリー

1977 年 97 巻 9 号 p. 1013-1016

詳細
抄録

Dimethylformamide solutions containing copper (II) perchlorate and amines were studied by absorption spectra and by magnetic measurement. Solutions of [butylamine]/[Cu (II)]=2-8 were yellow with a considerable absorption in the 400-nm region. The absorption can be ascribed to the presence of dimeric or oligomeric copper species, which was supported by the results of magnetic measurements. Solutions of the ratio over 10 were blue and their spectra had an absorption peak at 640 nm and no appreciable absorption in the 400-nm region. In these solutions copper was concluded to be present as Cu (amine)42+. Similar results were obtained with benzylamine and ammonia. Solutions containing Cu (II) and aniline had an intense absorption at 384 nm, which disappeared on acidification or on addition of amines with complexing ability. A similar absorption was produced by p-anisidine, p-toluidine, and m-toluidine but not by diphenylamine, ethyl p-aminobenzoate, or 2, 6-dimethylaniline. Magnetic measurement indicated Cu (II) species to be monomeric in the solutions. These results are interpreted in terms of the formation of a weak Cu (II)-aniline complex, possibly Cu (aniline)2+.

著者関連情報
© by the PHARMACEUTICAL SOCIETY OF JAPAN
前の記事 次の記事
feedback
Top