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Dergiler / Turkish Journal of Chemistry / 2015 / Cilt: 39 - Sayı: 2

Fluorescent mono- and tetra-dansylated cavitands: synthesis and acid sensitivity

ÜMİT İŞCİ
YUNUS ZORLU
FABIENNE DUMOULIN
Sayfa
207
Yayın Tarihi
2015-08-13
DOI
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Fluorescence quantum yields (\Phi _F) of mono- and tetra-dansylated cavitands and the reference compound were determined using dansyl chloride as reference in acetonitrile.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Two fluorescent tetra- and mono-dansylated resorcinarene cavitands were prepared and fully characterized.
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Temel Bulgular & Veri:The X-ray structure of mono-dansylated resorcinarene cavitand was obtained.
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Sonuç & Katkı:Fluorescence quantum yields (\Phi _F) of mono- and tetra-dansylated cavitands and the reference compound were determined using dansyl chloride as reference in acetonitrile.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Resorcinarene · cavitand · dansyl

Özet

Two fluorescent tetra- and mono-dansylated resorcinarene cavitands were prepared and fully characterized. The X-ray structure of mono-dansylated resorcinarene cavitand was obtained. Their intrinsic absorption and fluorescence properties were studied. These properties were strongly sensitive to the presence of perchloric acid, as evidenced by the appearance of isobestic points upon protonation of the dansyl dimethylamino functions. The decreasing of the fluorescence emission intensity upon titration with perchloric acid was explained by the excited state interactions between the dansyl groups of the resorcinarene. Fluorescence quantum yields (\Phi _F) of mono- and tetra-dansylated cavitands and the reference compound were determined using dansyl chloride as reference in acetonitrile.

Abstract

Two fluorescent tetra- and mono-dansylated resorcinarene cavitands were prepared and fully characterized. The X-ray structure of mono-dansylated resorcinarene cavitand was obtained. Their intrinsic absorption and fluorescence properties were studied. These properties were strongly sensitive to the presence of perchloric acid, as evidenced by the appearance of isobestic points upon protonation of the dansyl dimethylamino functions. The decreasing of the fluorescence emission intensity upon titration with perchloric acid was explained by the excited state interactions between the dansyl groups of the resorcinarene. Fluorescence quantum yields (\Phi _F) of mono- and tetra-dansylated cavitands and the reference compound were determined using dansyl chloride as reference in acetonitrile.

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Bu Makaleye Atıf Yap

İŞCİ, Ü., ZORLU, Y., DUMOULIN, F. (2015). Fluorescent mono- and tetra-dansylated cavitands: synthesis and acid sensitivity. Turkish Journal of Chemistry, Cilt: 39 - Sayı: 2, 207. https://ajindex.com/articles/185188

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Kaynakça (14)

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