期刊
LUMINESCENCE
卷 37, 期 11, 页码 1921-1931出版社
WILEY
DOI: 10.1002/bio.4376
关键词
auxiliary ligands; luminescence; paramagnetic NMR; ternary lanthanide complexes
资金
- Science and Engineering Research Board [EMR/2016/006135]
- Council of Scientific and Industrial Research, India [09/382 (0255)/2020-EMR-I]
A series of lanthanide beta-diketonates with heteroaromatic auxiliary ligands were synthesized and characterized. The complexes exhibited high thermal stability and emitted light, making them potential emitting materials for organic light-emitting diodes.
A series of lanthanide (samarium and terbium) beta-diketonates with heteroaromatic auxiliary ligands was synthesized. The prepared complexes were characterized through electrochemical, thermal, and spectroscopic analyses. Infrared analysis revealed the binding of the respective metal ion to oxygen and nitrogen atoms of diketone and ancillary ligands. Thermogravimetry/differential thermogravimetry profiles provided thermal information and specified the high thermal stability of the prepared complexes. The complexes exhibited the sharp and structured Ln-based emission in the visible region upon irradiation in the ultraviolet range. Photophysical analysis demonstrated the green and orange-red emission due to the respective characteristic transitions of Tb3+ and Sm3+ ions. Photophysical properties affirmed the luminous behaviour of the synthesized complexes. These luminous lanthanide complexes could be used as emitting materials in the design of organic light-emitting diodes.
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