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DOI:
https://doi.org/10.34804/supra.2021092869 Cc Cc by 4.0

Title:
Kinetics of Formation of the Host–Guest Complex of a Viologen with Cucurbit[7]uril

https://pubs.acs.org/na101/home/literatum/publisher/achs/journals/content/orlef7/2012/orlef7.2012.14.issue-13/ol300911a/production/images/large/ol-2012-00911a_0002.jpeg

Description:
Host–guest complexation between the dicationic viologen 1-tri(ethylene glycol)-1′-methyl-m-xylyl-4,4′-bipyridinium and cucurbit[7]uril (CB7) was studied at pH = 4.5 in water. The stability constants of the mono- and bis-CB7 adducts were determined at 25 °C by UV–vis spectroscopy. Stopped-flow kinetic experiments were performed to measure the formation and dissociation rate constants of the monoadduct: k1 = (6.01 ± 0.03) × 106 M–1 s–1 and k–1 = 52.7 ± 0.4 s–1, respectively. Possible mechanisms of complexation are discussed in view of the kinetic results.

Citation:

R. L. Halterman, J. Kalmár, S. B. Ellis, M. T. Ashby, SupraBank 2022, Kinetics of Formation of the Host–Guest Complex of a Viologen with Cucurbit[7]uril (dataset). https://doi.org/10.34804/supra.2021092869

Link: https://doi.org/10.34804/supra.2021092869
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Citation:

J. Kalmár, S. B. Ellis, M. T. Ashby, R. L. Halterman, Org. Lett. 2012, 14, 3248–3251.

Link: https://doi.org/10.1021/ol300911a
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Creators:
Orcidid | Ror | József Kalmár
Orcidid | Ror | Shawna B. Ellis
Orcidid | Ror | Michael T. Ashby
Orcidid | Ror | Ronald L. Halterman

Contributers:
Orcidid | Ror | Amrutha Prabodh | DataManager

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