高級脂肪酸のヒドロキサム酸の金属錯塩に関する研究 (第3報)

高級脂肪酸のヒドロキサム酸のFe^...錯塩の色に対する有機試薬の作用に関する研究

抄録

It was found that the addition of acids, compounds possessing coördinatively unsaturated oxygen atom, and compounds possessing highly negative groups to the abs. ethanolic solution of the mixture of Fe^... and the hydroxamic acid of oleic acid, in the molar ratio of 1:1 and 1:6, effected disappearance or fading of the color of such a solution and the experiments were carried out with acetic acid, lactic acid, ether, acetone, water, and pyridine as representative of the foregoing groups of compounds. It was thereby found that the complex of 1:1 molar ratio was more easily affected by various substances than that of the 1:6 molar ratio and that the former underwent change after converting once to the complex with 1:6 molar ratio. This endorses the previously reported fact that the complex of 1:1 molar ratio is more labile than that of 1:6 ratio. The change of the former into the latter before undergoing further change indicates that the bond in 1:1 complex is severed but it is still uncertain whether the complex of 1:6 ratio is severed of its bond by the above-mentioned substances or such substances attach additively to the complex of 1:6 molar ratio.