Cooperative Recognition of a Copper Cation and Anion by a Calix[4]arene Substituted at the Lower Rim by a β‐Amino‐α,β‐Unsaturated Ketone

Senthilvelan, Annamalai; Ho, I‐Ting; Chang, Kai‐Chi; Lee, Gene Hsiang; Liu, Yi Hung; Chung, Wen-Sheng

doi:10.1002/chem.200802654

Cited by 108 publications

(54 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[79,80] Later on Casnati and Ugozzoli, [81] Beer, [82,83] and Chung and co-workers [84] reported on further examples (42)(43)(44)(45) that function in a similar manner in aqueous or organic solvents. [79,80] Later on Casnati and Ugozzoli, [81] Beer, [82,83] and Chung and co-workers [84] reported on further examples (42)(43)(44)(45) that function in a similar manner in aqueous or organic solvents.…”

Section: Heterotropic Positively Cooperative Binding Of Anionsmentioning

confidence: 99%

Artificial Allosteric Receptors

Kremer¹,

Lützen²

2013

Chemistry A European J

128

View full text Add to dashboard Cite

Cooperative effects in the binding of two or more substrates to different binding sites of a receptor that are a result of a conformational change caused by the binding of the first substrate--also referred to as the effector--are called allosteric effects. In biological systems, allosteric regulation is a widely used mechanism to control the function of proteins and enzymes in cellular metabolism. Inspired by this a lot of efforts have been made in supramolecular chemistry to implement this concept into artificial systems to control functions as molecular recognition, signal amplification, or even reactivity and catalysis. This review gives an up-to-date overview over the different approaches that have been reported ever since the first examples from the late 1970s/early 1980s. It covers both homo- and heterotropic examples and is divided according to the nature of the effector--cationic, anionic, or neutral--effectors and systems that use combinations of those.

show abstract

Section: Heterotropic Positively Cooperative Binding Of Anionsmentioning

confidence: 99%

Artificial Allosteric Receptors

Kremer¹,

Lützen²

2013

Chemistry A European J

128

View full text Add to dashboard Cite

show abstract

“…complex was also deduced based on Job plot experiments [19]. The fluorescence intensity at 356 nm was plotted against the molar fraction of nickel(II) ion under a constant total concentration of BPP and Ni 2?…”

Section: Resultsmentioning

confidence: 99%

A highly selective chemosensor for nickel(II) based on fluorescence quenching of a bispyrazole derivative

Yan

et al. 2016

Res Chem Intermed

View full text Add to dashboard Cite

A novel bispyrazole, 2,6-bis(5-phenyl-1H-pyrazol-3-yl)-pyridine, was designed and synthesized. The bispyrazole showed extreme selectivity for Ni 2? over other metal ions such as ? in MeOH-H 2 O solution. The sensing sensitivity and binding properties of the bispyrazole for nickel(II) ion were investigated by fluorescent spectroscopic techniques. It was found that the bispyrazole possessed high selectivity and sensitivity toward Ni 2? over other metal ions. The binding stoichiometry was confirmed as 1:1 (bispyrazole/Ni 2? ) by Job plot experiment and the linearity of the Benesi-Hildebrand plot. The binding constants K and thermodynamic parameters (DH, DG, and DS) at different temperatures were obtained. Meanwhile, the detection limit of the bispyrazole for Ni 2? was determined to be 3.25 9 10 -7 mol L -1 .

show abstract

“…Then, it was diluted to the concentration (20 M) with THF to the determined solution (THF/H 2 O, V/V = 9/1). The binding stoichiometry of probe •I − was determined from a Job's plot [42]. The fluorescence intensity at 520 nm was plotted against the molar fraction of the probe with 0-2.0 equivalents of I − .…”

Section: Synthesis Of Probementioning

confidence: 99%