Chemiluminescence of naphthalene analogues of luminol in solution and micellar media

Martelo, Liliana; Periyasami, Govindasami; Fedorov, Alexander; Baleizão, Carlos; Berberan‐Santos, Mário N.

doi:10.1016/j.dyepig.2019.05.005

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…Compounds 6a and 7a exhibited a red-shift ~80 nm or ~60 nm as compared to luminol (1). Therefore, new luminol analogues 6a and 7a were efficiently conjugate and connect two chromophores (pyrazole and pyridine) to lead to an increase of aromaticity and provide the greenish-blue or bluish-green fluorescent materials (Table 2 and Figure 4) [36]. Particularly, the best positive solvatofluorism phenomenon was presented in CH2Cl2 solution.…”

Section: Resultsmentioning

confidence: 99%

Selective Synthesis and Photoluminescence Study of Pyrazolopyridopyridazine Diones and N-Aminopyrazolopyrrolopyridine Diones

et al. 2020

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The newly designed luminol structures of pyrazolopyridopyridazine diones and N-aminopyrazolopyrrolopyridine diones were synthesized from versatile 1,3-diaryfuropyrazolopyridine-6,8-diones, 1,3-diarylpyrazolopyrrolopyridine-6,8-diones, or 1,3-diaryl-7-methylpyrazolopyrrolopyridine-6,8-diones with hydrazine monohydrate. Photoluminescent and solvatofluorism properties containing UV–Vis absorption, emission spectra, and quantum yield (Φf) study of pyrazolopyridopyridazine diones and N-aminopyrazolopyrrolopyridine diones were also studied. Generally, most of pyrazolopyrrolopyridine-6,8-diones 6 exhibited the significant fluorescence intensity and the substituent effect when compared with N-aminopyrazolopyrrolopyridine diones, particularly for 6c and 6j with a m-chloro group. Additionally, the fluorescence intensity of 6j was significantly promoted due to the suitable conjugation conformation. Based on the quantum yield (Φf) study, the value of compound 6j (0.140) with planar structural skeletal was similar to that of standard luminol (1, 0.175).

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Section: Resultsmentioning

confidence: 99%