稀土金屬離子的2-甲 基-8-羥基喹啉及其衍生物之鉗合物的穩定常數

Stability Constants of Rare Earth Metal lon Chelates of 2-Methyl-8-Hydroxy-Quinoline and It's Derivatives

10.6623/chem.1976011

張苕旭(Tiao-Hsu Chang)；陳雅哲(Yea-Jer Chen)

化學

65年3期（1976 / 09 / 01）

63 - 71

繁體中文

由2-甲基-8-羥基喹啉(2-methyl-8-hydroxyquinoline)合成5,7-二氯-2-甲基-8-羥基喹啉(5,7-dichloro-2-methyl-8-hydroxyquinoline)，2-甲基-8-羥基喹啉N-氧化物(2-methyl-8-hydroxyquinoline N-oxide)和5,7-二氯-2-甲基-8-羥基喹啉N-氧化物(5,7-dichloro-2-methyl-8-hydroxyquinoline N-oxide)，並以電壓滴定法測定其酸解離常數，以及與La(III)，Pr(III)，Nd(III)，Sm(III)，Eu(III)，Gd(III)，Tb(III)，Ho(III)及Er(III)所生鉗合物的穩定常數。

5,7-Dichloro-2-methyl-8-hydroxyquinoline, 2-Methyl-8-hydroxyquinoline N-oxide and 5,7- Dichloro-2-methyl-8-hydroxyquinoline N-oxide were prepared from 2-Methyl-8-hydroxyquinoline. Their acid dissociation constants and stability constants of La(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Tb(III), Ho(III) and Er(III) were determined by potentiometric titration method.