Integrated fluorescence intensity vs. absorbance, measured at 330 nm, for rhodium(I) complexes, 4 ( ), 5 ( ) and 6 ( •), measured in ethanol at 25 °C. Integration of fluorescence curves were performed by OriginPro 2019b software version 9.6.5.169, and absorbance maxima measured for each concentration then plotted to give a straight line. The slopes of these straight lines were used to determine the fluorescent quantum yield of each compound as F ( 4 ) = 0.0 0 04, F ( 5 ) = 0.0 0 04, F ( 6 ) = 0.0010.

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Fig. 3. NMR spectra of compound 3 in CDCl 3 at 25 °C; top -1 H, middle...

Fig. 5. NMR spectra of compound 5 in CDCl 3 at 25 °C; top left -1 H,...

Fig. 6. NMR spectra of compound 6 in CDCl 3 at 25 °C; top left -1 H,...

Fig. 7. IR spectra of compounds 1 -6 . Spectra of ligands 1 -3 show a...

Fig. 8. UV/vis absorbance spectra (left) and fluorescence spectra of 2,...

Data for the synthesis and characterization of fluorene-containing β-diketonato ligands and their Rhodium(I) complexes

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Full-text available

Mar 2021

Eleanor Fourie-Müller

Three novel β-diketonato ligands were synthesized containing the fluorene-group as substituent. Rhodium(I) complexes thereof were synthesized as reported in Fluorene-containing β-diketonato ligands and their Rhodium(I) complexes. The ¹H and ¹³C NMR's of all 6 compounds are reported. Spectroscopic data of concentration variations vs absorbance inten...