引用本文:
Mao Zhong Tian, Feng Feng, Shuang Ming Meng, Yue Hua Yuan. A new selective fluorescent probe for lead ions[J]. Chinese Chemical Letters,
2009, 20(3): 326-329.
doi:
10.1016/j.cclet.2008.11.013
Citation: Mao Zhong Tian, Feng Feng, Shuang Ming Meng, Yue Hua Yuan. A new selective fluorescent probe for lead ions[J]. Chinese Chemical Letters, 2009, 20(3): 326-329. doi: 10.1016/j.cclet.2008.11.013
Citation: Mao Zhong Tian, Feng Feng, Shuang Ming Meng, Yue Hua Yuan. A new selective fluorescent probe for lead ions[J]. Chinese Chemical Letters, 2009, 20(3): 326-329. doi: 10.1016/j.cclet.2008.11.013
A new selective fluorescent probe for lead ions
摘要:
A new fluorescent probe (BPb1) for Pb2+ has been synthesized, where diethanolamine (receptor) is linked with 4,4-difluoro-4-bora-3a, 4a-diaza-s-indacene (BODIPY) (fluorophore) via a methylene group (spacer). The absorption (496 nm) and emission (505 nm) wavelengths are in visible range. The fluorescence quantum yields of the lead-free and lead-bound states of BPb1 in acetonitrile are 0.013 and 0.693, respectively. The large chelation enhanced fluorescence effect (CHEF) with Pb2+ can be explained by the blocking of the photoinduced electron transfer (PET) process.
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关键词:
- Probe
- / Pb2+
- / Selectivity
- / Photo-induced electron transfer
- / Fluorescence
English
A new selective fluorescent probe for lead ions
Abstract:
A new fluorescent probe (BPb1) for Pb2+ has been synthesized, where diethanolamine (receptor) is linked with 4,4-difluoro-4-bora-3a, 4a-diaza-s-indacene (BODIPY) (fluorophore) via a methylene group (spacer). The absorption (496 nm) and emission (505 nm) wavelengths are in visible range. The fluorescence quantum yields of the lead-free and lead-bound states of BPb1 in acetonitrile are 0.013 and 0.693, respectively. The large chelation enhanced fluorescence effect (CHEF) with Pb2+ can be explained by the blocking of the photoinduced electron transfer (PET) process.
-
Key words:
- Probe
- / Pb2+
- / Selectivity
- / Photo-induced electron transfer
- / Fluorescence
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