A modular, self-assembled, separated ion pair binding system

Turner, David R.; Spencer, Elinor C.; Howard, Judith A. K.; Tocher, Derek A.; Steed, Jonathan W.

doi:10.1039/b402882a

Cited by 96 publications

(59 citation statements)

References 16 publications

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“…51,193,194 motif. 195 The hydrogen bond details for the R ) 8 ( HPF 6 and HBF 4 are the same as those shown in Figure 3.31.…”

Section: Gel Formation With H 3 Po 4 and Organic Acidsmentioning

confidence: 68%

“…An important aspect is that it is not always necessary to use stoichiometric or excess amounts of anion to disrupt the formation of the gel. [195][196][197] Gel-to-sol transitions are not the only resultant affects caused by the addition of anions to a gel; anions can also be used to change the strength of the gel -cases are known of both anion-induced weakening and strengthening of gels. In addition to weakening gels and causing gel-tosol transitions, anions can be used to enhance gelation.…”

Section: 35mentioning

confidence: 99%

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Anion-tuning of supramolecular gel properties

2009

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“…51,193,194 motif. 195 The hydrogen bond details for the R ) 8 ( HPF 6 and HBF 4 are the same as those shown in Figure 3.31.…”

Section: Gel Formation With H 3 Po 4 and Organic Acidsmentioning

confidence: 68%

Section: 35mentioning

confidence: 99%

Anion-tuning of supramolecular gel properties

2009

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“…Additional functionalisation can be achieved by treatment with pyridine, 1-pyridin-3-yl-3-p-tolyl-urea [26] and N-[(naphthalen-1-yl)methyl]pyridin-3-amine. [27] These reactions can be performed through traditional solution-state methods (compounds 2 and 6) or alternatively by using a mechanochemical reaction (compounds 3 and 4).…”

Section: Resultsmentioning

confidence: 99%

Colourimetric Carboxylate Anion Sensors Derived from Viologen‐Based Receptors

Swinburne

Paterson

Fischer

et al. 2010

Chemistry A European J

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A series of tri- and tetrapodal viologen-based anion receptors showing a colourimetric response to carboxylates, such as acetate, have been synthesised. Alteration of the anion binding sites allows for binding site competition within a receptor. This results in a delayed colourimetric response for urea derivatives compared with pyridinium systems because the anions are initially bound to the periphery of the receptor, away from the viologen unit. DFT calculations and experimental measurements allow the colour change to be assigned to an anion-receptor charge-transfer process, facilitated by the exceptionally low reduction potential of the cationic host compounds. Evidence for electron transfer to give the viologen radical cation is also seen in some cases.

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“…The NH proton in the imidazole ring in resulting complex became sufficiently acidic to interact with the incoming anion either by hydrogen http://dx.doi.org/10.1016/j.ica.2016.02.041 0020-1693/Ó 2016 Elsevier B.V. All rights reserved. bonding interaction or by complete proton transfer [42,[55][56][57][58][59][60][61][62][63]. Consequently, the optical properties of the complex have been modulated to a great extent with the variation of both anionic and cationic inputs.…”

Section: Introductionmentioning

confidence: 99%