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2 article(s) from Zhang, Xiaodong

The interaction between cucurbit[8]uril and baicalein and the effect on baicalein properties

Xiaodong Zhang,
Jun Xie,
Zhiling Xu,
Zhu Tao and
Qianjun Zhang

Beilstein J. Org. Chem. 2020, 16, 71–77, doi:10.3762/bjoc.16.9

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Figure 1: Chemical structures of baicalein (left), cucurbit[8]uril (right).

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Figure 2: The possible interaction model for Q[8] and baicalein.

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Figure 3: ¹H NMR spectra (400 MHz) of Q[8] (a), baicalein (b) and BALE–Q[8] (1:1) (c) recorded in DCl.

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Figure 4: The absorption spectra of BALE upon the addition of Q[8] under different conditions [10 mol·L⁻¹ HCl...

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Figure 5: IR spectra of Q[8] (a), BALE (b), a physical mixture of Q[8]-BALE (N_Q[8]/N_BALE = 1:1) (c) and the B...

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Figure 6: DTA spectra of BALE (a), Q[8] (b), a physical mixture Q[8]-BALE (N_Q[8]/N_BALE = 1:1) (c) and the BAL...

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Figure 7: The stability curve of UV–vis absorption obtained for an isoconcentration of BALE and the BALE–Q[8]...

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Figure 8: The phase solubility graph obtained for BALE in Q[8] at λ = 270 nm.

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Figure 9: The clearance rate curve (A) and clearance time curve (B) of ABTS^+· upon increasing the concentrati...

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Figure 10: The release curves of BALE and BALE–Q[8].

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Published 10 Jan 2020

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Host–guest interactions in nor-seco-cucurbit[10]uril: novel guest-dependent molecular recognition and stereoisomerism

Xiaodong Zhang,
Wei Wu,
Zhu Tao and
Xin-Long Ni

Beilstein J. Org. Chem. 2019, 15, 1705–1711, doi:10.3762/bjoc.15.166

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Scheme 1: Chemical structures of host-1, host-2, G1, and G2.

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Figure 1: ¹H NMR spectra of G1 (1.0 mmol, D₂O, pD = 2.0) in the presence of host-1 at different concentration...

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Figure 2: ¹H NMR spectra of G1 (1.0 mmol, D₂O, pD = 2.0) in the presence of host-2 at different concentration...

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Scheme 2: Plausible diastereomers showing the fluorescence response of G2 with host-1.

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Figure 3: Fluorescence spectral changes of G2 (10.0 μM) in the presence of host-1 (a) and host-2 (b) at diffe...

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Figure 4: ¹H NMR spectra of G2 (1.0 mmol, D₂O, pD = 2.0) in the presence of different concentrations of host-1...

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Published 19 Jul 2019

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