Paper
9 April 2020 The influence of the structure of phosphorus-based ligands on the stability of europium complexes using spectrophotometric titration
Author Affiliations +
Proceedings Volume 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling; 114580W (2020) https://doi.org/10.1117/12.2563625
Event: Saratov Fall Meeting 2019: VII International Symposium on Optics and Biophotonics, 2019, Saratov, Russian Federation
Abstract
The influence of structure of the phosphine oxide ligands on stability of their complexes was studied by spectroscopic techniques. Surprising the electron donating methyl groups at phenyl rings of phosphine oxide groups lead to decrease of the stability of europium complex comparing with ubsubsituted one due to their sterical prevention of conjugation between phenyl rings and P=O-groups.. This unusual behavior was first time demonstrated by spectroscopic titration and Job’s plot analysis.
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Tsagana B. Sumyanova, Nataliya E. Borisova, Gladiz G. Zakirova, and Leonid A. Korotkov "The influence of the structure of phosphorus-based ligands on the stability of europium complexes using spectrophotometric titration", Proc. SPIE 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling, 114580W (9 April 2020); https://doi.org/10.1117/12.2563625
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KEYWORDS
Europium

Oxides

Absorbance

Absorption

Metals

Chemical species

NOx

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