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A New Complex of Europium(II) with edta – Structure and Spectroscopy
Author(s) -
Janicki Rafał,
Mondry Anna,
Starynowicz Przemysław
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500236
Subject(s) - europium , ethylenediaminetetraacetic acid , chemistry , carboxylate , coordination sphere , molecule , infrared spectroscopy , inorganic chemistry , crystallography , spectroscopy , chelation , ion , stereochemistry , physics , organic chemistry , quantum mechanics
A new complex of europium(II) with ethylenediaminetetraacetic acid was obtained by electrochemical reduction. The compound is composed of polymeric $\rm [Eu(edta)]_{\infty}^{\phantom{\infty}2\infty-}$ chains, guanidinium cations and water molecules. The Eu 2+ cation is eight‐coordinate (two nitrogen atoms and six carboxylate oxygen atoms), and contrary to europium(III) complexes with edta, does not contain water molecules in the first coordination sphere. Relationships between the coordination mode and IR as well as UV–Vis spectra are discussed.