4f-Luminescence of ytterbium ions in the complexes with asymmetric porphyrins

New complexes of ytterbium with asymmetric porphyrins containing substituents in β-positions were obtained and characterized by elemental analysis, IR, UV–vis absorption and luminescence spectroscopy. Electronic absorption, luminescence and luminescence excitation spectra of these complexes were stu...

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Veröffentlicht in:Journal of alloys and compounds 2008-02, Vol.451 (1), p.334-337
Hauptverfasser: Zhuravlyov, S., Rusakova, N., Korovin, Yu
Format: Artikel
Sprache:eng
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Zusammenfassung:New complexes of ytterbium with asymmetric porphyrins containing substituents in β-positions were obtained and characterized by elemental analysis, IR, UV–vis absorption and luminescence spectroscopy. Electronic absorption, luminescence and luminescence excitation spectra of these complexes were studied at 295 K in DMF solutions. The 4f-luminescence of ytterbium–porphyrins in the near infrared (IR) spectral region ( λ max = 980 nm) is observed under excitation in Soret band (400–430 nm). The effect of substituent in porphyrin macroring on the 4f-luminescent properties was also investigated.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2007.04.138