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Effective Encapsulation of Europium(3+) by a Heptadentate Schiff‐Base Ligand
Author(s) -
Dröse Peter,
Blaurock Steffen,
Hrib Cristian G.,
Edelmann Frank T.
Publication year - 2010
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.201000141
Subject(s) - europium , triethylamine , dimethoxyethane , chemistry , schiff base , acetonitrile , amine gas treating , lanthanide , ligand (biochemistry) , ion , crystal structure , tris , inorganic chemistry , polymer chemistry , medicinal chemistry , crystallography , organic chemistry , biochemistry , receptor , electrode , electrolyte
The bright yellow Schiff‐base complex Eu(TRENDSAL) ( 1 ) (TRENDSAL = N[CH 2 CH 2 N=CH(2‐OH‐3,5‐ t Bu 2 C 6 H 2 )] 3 ) was prepared in 71 % yield by treatment of EuCl 3 ·6H 2 O simultaneously with 3,5‐di‐ tert ‐butylsalicylicaldehyde and tris(2‐aminoethyl)amine in the presence of triethylamine. X‐ray crystal structure analyses of the solvates 1 ·DME (DME = 1,2‐dimethoxyethane) and 1 ·MeCN demonstrated the tight encapsulation of the Eu 3+ ion, allowing not even the “slim” acetonitrile to enter the coordination sphere of europium.