Triple Stack of a Viologen Derivative in a CB[10] Pair
Author(s) -
Fengbo Liu,
Shagor Chowdhury,
Roselyne Rosas,
Valérie Monnier,
Laurence Charles,
Hakim Karoui,
Didier Gigmès,
Olivier Ouari,
Floris Chevallier,
Christophe Bucher,
Anthony Kermagoret,
Simin Liu,
David Bardelang
Publication year - 2021
Publication title -
organic letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.94
H-Index - 239
eISSN - 1523-7060
pISSN - 1523-7052
DOI - 10.1021/acs.orglett.1c00773
Subject(s) - chemistry , viologen , stack (abstract data type) , derivative (finance) , combinatorial chemistry , triple bond , stereochemistry , photochemistry , organic chemistry , computer science , operating system , business , double bond , finance
A viologen-phenylene-imidazole ( VPI ) conjugate, previously shown to be singly complexed by CB[7] and doubly bound by CB[8], is herein shown to form antiparallel triple stacks in water with cucurbit[10]uril (CB[10]), pairwise complexing the guest trimer. The quinary host:guest 2:3 complex showed features assignable to charge-transfer interactions. Under reductive conditions, CB[10] could solubilize a VPI radical, even though CB[10] and reduced VPI are almost insoluble, thereby illustrating a possible new application for CB[10].
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