2011
DOI: 10.1007/s10847-011-9975-9
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Redox-switchable binding of ferrocyanide with tetra(viologen)calix [4] resorcine

Abstract: A binding of ferrocyanide ([Fe(CN) 6 ] 4-) with octa-cationic tetra(viologen) calix [4] resorcine (MVCA 8? ) and its ''model'' compound--dimethyl viologen (MV 2? ) has been studied by cyclic voltammetry in DMSO-H 2 O media (60 vol.% aqueous DMSO, 0.1 M NaClO 4 ). It was found that MV 2? does not interact with ferrocyanide. By contrast, a reversible redox-switchable interaction between [Fe(CN) 6 ] 4-and MVCA 8? has been observed. MVCA 8? forms a 1:1 supramolecular complex MVCA 8? :[Fe(CN) 6 ] 4-with ferrocyanid… Show more

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Cited by 14 publications
(2 citation statements)
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“…Dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO) proved excellent concerning signal reproducibility, as due to the favorable solvation of the product oligomers, fouling could be avoided. In general, these two solvents are very appropriate for a huge number of organic compounds to dissolve them [24][25][26][27][28] and this is true also for naphthol polymers as the results here also confirm. The rate of deactivation could be only slightly decreased in 1-propanol, showing a high affinity of solvent molecules to solvate the formed oligomers, but it depends on the length of the aliphatic carbon chain (see Figure 1c for 1-pentanol solvent).…”
Section: Studies With the Naphthol Isomers In Different Non-aqueous S...supporting
confidence: 79%
“…Dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO) proved excellent concerning signal reproducibility, as due to the favorable solvation of the product oligomers, fouling could be avoided. In general, these two solvents are very appropriate for a huge number of organic compounds to dissolve them [24][25][26][27][28] and this is true also for naphthol polymers as the results here also confirm. The rate of deactivation could be only slightly decreased in 1-propanol, showing a high affinity of solvent molecules to solvate the formed oligomers, but it depends on the length of the aliphatic carbon chain (see Figure 1c for 1-pentanol solvent).…”
Section: Studies With the Naphthol Isomers In Different Non-aqueous S...supporting
confidence: 79%
“…They effectively bind multiply charged anions to form host-guest complexes by the four-centered electrostatic or donor-acceptor interaction of the viologen species with the charged or donor centers of anions. [33][34][35] The reversible reduction of the viologen groups to a radical cation or neutral form results in the weakening of host-guest complexes and to the appearance of new noncovalent interactions: intermolecular p dimerization of the viologen radical cations and the intermolecular hydrophobic interaction of resorcinarene platforms. [36,37] The bonding of MVCA 8 + in the nanoscale polymer matrix could open some opportunities for synthesizing new polyelectrolyte nanoparticles.…”
Section: Introductionmentioning
confidence: 99%