金属指示剂-紫外分光法研究Ti(Ⅳ)-羧酸、羟基羧酸的配位作用

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (2): 109.

金属指示剂-紫外分光法研究Ti(Ⅳ)-羧酸、羟基羧酸的配位作用

邱陵, 贾东方, 孙乔玉

兰州大学

收稿日期:1984-10-18 出版日期:1986-02-24 发布日期:1986-02-24
基金资助:
中国科学院科学基金

Study on the Complexation of Ti(Ⅳ)-Carboxylic and Hydroxy Carboxylic Acid by Metallic Indicator Method-UV Spectroscopy

Qiu Liag, Jia Doagfang, Sun Qiaoya

Lanzhou University, Lanzhou

Received:1984-10-18 Online:1986-02-24 Published:1986-02-24

摘要/Abstract

摘要： 本文以铬变酸为Ti(Ⅳ)的金属指示剂,研究了pH1.50时10种羧酸对Ti(Ⅳ)的相对配位能力,用推导出的公式处理光吸收的测量值并定量地求出其相对配位能力,还研究了Ti(Ⅳ)和羧酸、羟基羧酸的紫外光谱,探讨了成键方式。

Abstract: The relative Complexing ability of 10 sorts of carboxylic acids with Ti(Ⅳ) at pH=1.50 was studied using chromotropic acid as metallic indicater. By treatment of the spectral absorption data with a formula derived by the author, the relative complexing ability can be calculated quantitatively as follows:Oxalic acid (100)>D-gluconic acid (8)>Citric acid(33)>Glyceric acid(16) >Lactic acid(11 ,5)>Tartaric acid (10)>Succinic acid(8.4)>Acetic acid(7)>Ma-lonic acid(6)>Malic acid(l.7).The UVspectra characteristics and the way of band formation of Ti(Ⅳ)—carboxylic and Ti( Ⅳ )-hydroxycarboxylic acid were studied and discussed.According to the magnitude of λ_max , the relative stability series of the chemical bond between the Ti( Ⅳ) and the ligands from 6 sorts of hydroxy,, carboxlic acids in the interval of pHfrom 1 to 2 was established.

TrendMD:

邱陵, 贾东方, 孙乔玉. 金属指示剂-紫外分光法研究Ti(Ⅳ)-羧酸、羟基羧酸的配位作用. 高等学校化学学报, 1986, 7(2): 109.

Qiu Liag, Jia Doagfang, Sun Qiaoya . Study on the Complexation of Ti(Ⅳ)-Carboxylic and Hydroxy Carboxylic Acid by Metallic Indicator Method-UV Spectroscopy. Chem. J. Chinese Universities, 1986, 7(2): 109.