Solvent effect and fluorescence response of the 7-tert-butylpyrene-dipicolylamine linkage for the selective and sensitive response toward Zn(ii) and Cd(ii) ions

Zannatul Kowser; Hirotsugu Tomiyasu; Xuekai Jiang; Ummey Rayhan; Carl Redshaw; Takehiko Yamato

doi:10.1039/c4nj02363c

Solvent effect and fluorescence response of the 7-tert-butylpyrene-dipicolylamine linkage for the selective and sensitive response toward Zn(ii) and Cd(ii) ions

New Journal of Chemistry ◽

10.1039/c4nj02363c ◽

2015 ◽

Vol 39 (5) ◽

pp. 4055-4062 ◽

Cited By ~ 19

Author(s):

Zannatul Kowser ◽

Hirotsugu Tomiyasu ◽

Xuekai Jiang ◽

Ummey Rayhan ◽

Carl Redshaw ◽

...

Keyword(s):

Solvent Effect ◽

Fluorescent Sensors ◽

Fluorescence Response ◽

Solvent Systems

The complexation behaviour of new fluorescent sensors based on 7-tert-butylpyrene towards Zn2+and Cd2+in different solvent systems has been investigated.

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Solubility Determination, Model Correlation, and Solvent Effect Analysis of Nisoldipine in Different Solvent Systems at a Series of Temperature

Journal of Chemical & Engineering Data ◽

10.1021/acs.jced.9b01036 ◽

2020 ◽

Vol 65 (4) ◽

pp. 1627-1635 ◽

Cited By ~ 2

Author(s):

Xia Chen ◽

Qianqian Xu ◽

Zhiying Liu ◽

Xianling Zhu ◽

Huilin Zheng ◽

...

Keyword(s):

Solvent Effect ◽

Effect Analysis ◽

Solvent Systems ◽

Solubility Determination ◽

Model Correlation

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Solute–solvent effects in the dissociation of thymolsulfonephthalein (an uncharged acid) in aqueous mixtures of acetonitrile (ACN), urea, and dimethyl sulfoxide (DMSO)

Canadian Journal of Chemistry ◽

10.1139/v86-249 ◽

1986 ◽

Vol 64 (8) ◽

pp. 1521-1526 ◽

Cited By ~ 7

Author(s):

A. L. De ◽

A. K. Atta

Keyword(s):

Solvent Effect ◽

Dimethyl Sulfoxide ◽

Solvent Effects ◽

Mixed Solvent ◽

Dissociation Constants ◽

Aqueous Mixtures ◽

Solvent Interactions ◽

Gibbs Energies ◽

Gibbs Energies Of Transfer ◽

Solvent Systems

The thermodynamic first dissociation constants, [Formula: see text] of thymolsulfonephthalein (H2A), an uncharged acid, have been determined at 25 °C in aqueous mixtures of 10, 30, 50, 70, and 80 wt% acetonitrile (ACN), 11.52, 20.31, 29.64, and 36.83 wt% urea, 20, 40, 60, and 80 wt% dimethyl sulfoxide (DMSO) by spectrophotometric measurements. The solvent effect represented by ∂(ΔG0) = 2.303RT[p(sK)N − p(wK)N] is found to increase in ACN + H2O system as mol% ACN increases in the solvent. In contrast, the corresponding values in urea + H2O as well as DMSO + H2O solvent systems decrease with increase in proportion of organic component in the solvent, the decrease being sharp in urea + H2O. The results have been discussed in terms of the standard Gibbs energies of transfer of H+ from water to the mixed solvent, [Formula: see text] and the relative values of the standard Gibbs energies of transfer of HA−, [Formula: see text] and of [Formula: see text] in all the solvent systems. The overall dissociation behaviour of the acid (H2A) is found to be dictated by the specific solute-solvent interactions of the species participating in the dissociation equilibria.

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