Luminescence study of complexation of europium and dicarboxylic acids
- Florida State Univ., Tallahasee (USA)
Luminescence lifetime measurements of Eu(III) have been used to study the hdration of Eu(III) when complexed by alkane-dicarboxylate ligands. In its mono(malonate) complex, Eu(III) was found to have 2.3 fewer water molecules than the uncomplexed hydrated cation. In the formation of its 1:1 complexes with succinate, glutartate, and adipate, Eu(III) lost 1.5 molecules of water. When these dicarboxylate ligands reacted with the EuNTA complex to form the 1:1:1 ternary species, the malonate anion replaced 2.2, the succinate 1.5, and the glutarate and adipate 1.0 water molecules (all these values have ca. {plus minus}0.5 uncertainty). These data are discussed in terms of the effect on chelation of increased alkyl chain length. 13 refs., 4 figs., 5 tabs.
- OSTI ID:
- 5053035
- Journal Information:
- Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 28:17; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ALKANES
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
COMPLEXES
DATA
DICARBOXYLIC ACIDS
ELEMENTS
EUROPIUM
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
LUMINESCENCE
METALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
RARE EARTHS