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Updated: Jun 29, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphos^Ph Complexes

Published on: April 10, 2015

Interaction of uranium(VI) with phthalic acid.

Gustavo J Vazquez¹, Cleveland J Dodge, Arokiasamy J Francis

¹Environmental Sciences Department, Brookhaven National Laboratory, Upton, New York 11973, USA.

Inorganic Chemistry

|October 14, 2008

Summary

Phthalic acid forms stable, soluble complexes with uranium, potentially influencing its environmental mobility. This research details uranium-phthalate interactions in various conditions.

Area of Science:

Environmental Chemistry
Geochemistry
Nuclear Chemistry

Background:

Phthalic acid is a common organic compound present in soil, water, and waste.
It can alter the movement and availability of metals and radionuclides in the environment.

Purpose of the Study:

To investigate the complexation of uranium with phthalic acid.
To understand how phthalic acid affects uranium's chemical behavior and mobility.

Main Methods:

Potentiometric titration to determine binding interactions.
Electrospray ionization-mass spectroscopy (ESI-MS) to identify complex formation.
Extended X-ray absorption fine structure (EXAFS) analysis for structural confirmation.

Main Results:

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Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Published on: January 3, 2018

Uranyl ions bond with both carboxylate groups of phthalic acid.
Above pH 5, uranyl ions undergo hydrolysis, coordinating with a hydroxyl group.
ESI-MS and EXAFS confirmed the predominant formation of a 1:2 uranium/phthalic acid complex.

Conclusions:

Phthalic acid forms stable, soluble complexes with uranium.
These complexes can significantly impact uranium's environmental mobility and bioavailability.