摘要
提出等色点摩尔比法测定单核与多核共存体系配合物的组成和稳定常数。方法用于铟-二甲酚橙体系,测得体系中存在的两配合物的组成比In/XO分別为1:1(λ_(max)=510nm)和2:1(λ_(max)=560nm),其稳定常数分别为K_1=8.83X10^8,K_2=1.44X10^7。
Isobestic point spectrophotometric method is proposed to determine the compositions and stability constants of complexes in a coexistent system of mononuclear and polynuclear complexes. This method has been used in a indium-xylenol orange system, the compositions of the two complexes obtained are 1:1 (In:XO,λmax=510 nm) and 2:1(λmax=560 nm), and the stability constants are K1 = 8. 83×108 and K2=1. 44×107, respectively.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第3期240-244,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
铟配合物
二甲酚橙
组成
稳定常数
Complex composition, Complex stability constant, Indium-xylenol orange complex