The Spectropolarimetric Back-Titration of Rhodium(III) with the Chiral Ligand (R, R)-(-)-Trans-1, 2-Cyclohexanediaminetetraacetic Acid
作者:
J.A. King,
K.H. Pearson,
期刊:
Analytical Letters
(Taylor Available online 1979)
卷期:
Volume 12,
issue 7
页码: 811-829
ISSN:0003-2719
年代: 1979
DOI:10.1080/00032717908059762
出版商: Taylor & Francis Group
关键词: Spectropolarimetric titrimetry;Rhodium(III) (R, R) -(-)-Trans-1;2-Cyclohexanediamine-tetraacetic acid
数据来源: Taylor
摘要:
Spectropolarimetric back-titrations are described for rhodium(III); the optically active ligand (R, R)-(-)-tłans-l, 2-cyclohexanediaminetetraacetic acid (R, R(-)CDTA) is used as the complexing agent and cadmium(II) ion as the back-titrant. The optical rotation is monitored throughout the titration, and the optically active ligand and stereospecifically formed complexes serve as self-indicators. The end points are determined graphically by straight-line extrapolations from a plot of volume-corrected observed rotations versus ml of titrant. The rhodium(III) titration plots are representative of normal spectro-polarimetric back-titrations. The range of analyses of rhodium(III) was from 40–0.5 mg.
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