Synthesis and spectroscopic properties of β-triazoloporphyrin–xanthone dyads

• Dileep Kumar Singh and
• Mahendra Nath

Beilstein J. Org. Chem. 2015, 11, 1434–1440, doi:10.3762/bjoc.11.155

• fluorescence spectra of these porphyrin–xanthone dyads. Keywords: 1,3-dipolar cycloaddition; fluorescence; synthesis; triazoloporphyrin-xanthone dyads; UV–vis spectroscopy; Introduction In the past few decades, porphyrin macrocycles have emerged as a unique class of heterocyclic compounds and as most

• 5–6 nm when compared to the TPP (Soret band at 419 nm and Q-bands at 516, 551, 590 and 646 nm). In addition, zinc(II) β-triazoloporphyrin–xanthone dyads 6c,f,i exhibited their Soret bands between 430–431 nm and two Q-bands at ~561 and 602 nm which were found to be red-shifted by about 5–6 nm as