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Title: X-ray crystallographic, luminescence and NMR studies of phenacyldiphenylphosphine oxide with the Ln( iii ) ions Sm, Eu, Gd, Tb and Dy
We report here the characterization in solution (NMR, luminescence, MS) and the solid-state (X-ray crystallography, IR) of complexes between phenacyldiphenylphosphine oxide and five Ln( iii ) ions (Sm, Eu, Gd, Tb, Dy). Four single crystal X-ray structures are described here showing a 1 : 2 ratio between the Ln 3+ ions Eu, Dy, Sm and Gd and the ligand, where the phosphine oxide ligands are bound in a monodentate manner to the metal center. A fifth structure is reported for the 1 : 2 Eu(NO 3 ) 3 -ligand complex showing bidentate binding between the two ligands and the metal center. The solution coordination chemistry of these metal complexes was probed by 1 H, 13 C and 31 P NMR, mass spectrometry, and luminescence experiments. The title ligand has the capability to sensitize Tb 3+ , Dy 3+ , Eu 3+ and Sm 3+ leading to metal-centered emission in solutions of acetonitrile and methanol and in the solid state.  more » « less
Award ID(s):
1725699
NSF-PAR ID:
10063353
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ;
Date Published:
Journal Name:
Dalton Transactions
Volume:
46
Issue:
44
ISSN:
1477-9226
Page Range / eLocation ID:
15458 to 15469
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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