Table 3. UV–Vis and Fluorescent Spectral Study of SIQPs in ACN (1.5 × 10–3 M).
UV database |
fluorescent λexc = 350 nm, Δλ = (λem – λexc) nm |
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---|---|---|---|---|---|---|---|
product | λmax (nm) | A | ε (M–1 cm–1) | λem (nm) | Δλ (nm) | intensity (If) | quantum yield (Φ) |
SIQP I | 347 | 1.8 | 1200 | 490 | 140 | 167 | 71.5 |
SIQP II | 349 | 2.0 | 1333 | 490 | 140 | 13 995 | 71.5 |
SIQP III | 337 | 1.0 | 666 | 489 | 139 | 65 | 71.6 |