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DOI:
https://doi.org/10.34804/supra.20240325533 Cc Cc by 4.0

Title:
Inclusion of methylviologen in cucurbit[7]uril

https://www.pnas.org/cms/asset/b4e2d41b-fda3-4974-b695-7f6b06801034/pnas.2002.99.issue-8.cover.gif

Description:
The inclusion behavior of methylviologen ( N , N ′-dimethyl-4,4′-bipyridinium, MV) dication in cucurbit[7]uril (CB[7]) has been studied by using various spectroscopic and electrochemical methods. The inclusion complex of MV dication in CB[7] is stable thermodynamically and kinetically. The electrochemical study reveals that unlike β-cyclodextrin, CB[7] prefers the charged species, MV dication (MV 2+ ), and cation radical (MV + ⋅ ) to the fully reduced neutral (MV 0 species as guests. Dimerization of MV + ⋅ is suppressed effectively by forming a stable complex with CB[7] in aqueous solution as confirmed by spectroelectrochemical experiments. Furthermore, the first redox process (MV 2+ /MV + ⋅ ) of the MV 2+ –CB[7] complex occurs predominantly via the direct electron transfer pathway, whereas the second redox process (MV + ⋅ /MV 0 ) occurs via both the direct and indirect pathway because of the low affinity of the fully reduced species MV 0 to CB[7].

Citation:

K. Kim, Y. H. Ko, W. S. Jeon, H. Kim, SupraBank 2024, Inclusion of methylviologen in cucurbit[7]uril (dataset). https://doi.org/10.34804/supra.20240325533

Link: https://doi.org/10.34804/supra.20240325533
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Citation:

H.-J. Kim, W. S. Jeon, Y. H. Ko, K. Kim, Proc. Natl. Acad. Sci. U.S.A. 2002, 99, 5007–5011.

Link: https://doi.org/10.1073/pnas.062656699
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Creators:
Orcidid | Ror | Hee-Joon Kim
Orcidid | Ror | Woo Sung Jeon
Orcidid | Ror | Young Ho Ko
Orcidid | Ror | Kimoon Kim

Contributers:
Orcidid | Ror | Vahideh Mahram | DataManager

Subjects:
multidisciplinary

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