Novel Lanthanide(III) Ternary Complexes with Naphthoyltrifluoroacetone: A Synthetic and Spectroscopic Study |
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| Authors: | Thi‐Nguyet Trieu Thi‐Hien Dinh Hung‐Huy Nguyen Ulrich Abram Minh‐Hai Nguyen |
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| Affiliation: | 1. Department of Chemistry, Hanoi University of Science, 19 Le Thanh Tong, Hanoi, Vietnam;2. Department of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Hanoi, Vietnam;3. Institute of Chemistry and Biochemistry, Freie Universit?t Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany |
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| Abstract: | A series of lanthanide complexes with general formula [Ln(NTA)3X] were prapared [Ln = Y ( a ), Er ( b ), Eu ( c ), NTA = naphthoyltrifluoroacetone, X = H2O ( 1 ), phen = phenanthroline ( 2 ), bpyO1 = 2, 2′‐bipyridine N‐oxide ( 3 ), and bpyO2 = 2, 2′‐bipyridine‐N,N′‐dioxide ( 4 )]. The crystal structures of [Eu(NTA)3bpyO2] ( 4b ), [Er(NTA)3bpyO1] ( 3c ), and [Er(NTA)3phen] ( 2c ) were determined. X‐ray crystallographic analysis reveals that the complexes are of mononuclear structure with three NTA and one ancillary ligand. The photoluminescence spectra of 3c and 4b exhibit strong characteristic emissions arising from Eu3+ central ion due to the efficient sensitization of bpyO1 and bpyO2, respectively. |
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| Keywords: | Lanthanide complexes Bipyridine N‐oxide β ‐Diketonate X‐ray structure |
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