STUDY OF AN AL(III) COMPLEX WITH THE PLANT DYE BRAZILEIN FROM CEASALPINIA SAPPAN LINN AL(III) COMPLEX WITH BRAZILEIN FROM CEASALPINIA SAPPAN LINN

被引：0

作者：

Wongsooksin, Kamonchanok ^{[1
]}

Rattanaphani, Saowanee ^{[1
]}

Tangsathit-Kulchai, Malee ^{[1
]}

Rattanaphani, Vichitr ^{[1
]}

Bremner, John Barnard ^{[2
]}

机构：

[1] Suranaree Univ Technol, Sch Chem, Inst Sci, Nakhon Ratchasima 30000, Thailand

[2] Univ Wollongong, Sch Chem, Wollongong, NSW 2522, Australia

来源：

SURANAREE JOURNAL OF SCIENCE AND TECHNOLOGY | 2008年 / 15卷 / 02期

关键词：

brazilein; spectrophotometry; complexation; alum;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The structure of the complex formed between Al(III) (alum) and brazilein in aqueous solution was investigated using UV-visible spectroscopy. The molar ratio method and Job's method of continuous variation were applied to ascertain the stoichiometric composition of the complex in aqueous solution. A 1:2 complex was indicated by both methods. A structure for Al(brazilein)(2) was proposed and the calculated heat of formation of this complex, obtained by the semiempirical PM3 method, indicated that the proposed complex was a reasonable one energetically.

引用

页码：159 / 165

页数：7

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