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1 article(s) from Sen, Tanushree

Anthracene coupled adenine for the selective sensing of copper ions

Kumaresh Ghosh and
Tanushree Sen

Beilstein J. Org. Chem. 2010, 6, No. 44, doi:10.3762/bjoc.6.44

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Graphical Abstract

Scheme 1: Adenine-based receptors 1 and 2.

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Scheme 2: Syntheses of receptors 1 and 2.

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Figure 1: Design principle for 1 and 2.

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Figure 2: AM1 optimized geometries of 1 (E = −162.48 au) of 2 (E = −139.59 au).

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Figure 3: a) Fluorescence ratio (I-I₀/I₀) of receptor 1 (c = 5.09 × 10⁻⁵ M) at 413 nm upon addition of 20 equ...

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Figure 4: Emission spectra of receptor 1 (c = 5.09 × 10⁻⁵ M) during titration with Cu²⁺ ion (c = 1.4 × 10⁻³ M...

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Figure 5: a) Emission spectra of receptor 2 (c = 1.48 × 10⁻⁵ M) during titration with Cu²⁺ ion (c = 4.4 × 10⁻⁴...

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Figure 6: Stern–Volmer plot of receptor 2 (c = 1.48 × 10⁻⁵ M) at 413 nm upon addition of 20 equiv of a partic...

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Figure 7: Change in emission of 1 (c = 8.66 × 10⁻⁵ M) (a) and 2 (c = 1.29 × 10⁻⁴ M) (b) upon addition of 10 e...

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Figure 8: a) Binding constant curve for 1 with Cu²⁺ ion; b) binding constant curve for 2 with Cu²⁺ ion.

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Figure 9: a) Absorption spectra of receptor 1 (c = 5.09 × 10⁻⁵ M) upon gradual addition of Cu²⁺ ion (c = 1.4 ...

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Figure 10: a) Absorption spectra of receptor 2 (c = 1.48 × 10⁻⁵ M) upon gradual addition of Ag⁺ ion (c = 4.4 ×...

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Figure 11: Absorption spectra of anthracene (c = 2.39 × 10⁻⁵ M) upon gradual addition of Cu²⁺ ion (c = 1.20 × ...

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Published 05 May 2010

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