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Cited by 375

The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.

Molecular Tweezers and Clips as Synthetic Receptors. Molecular Recognition and Dynamics in Receptor−Substrate Complexes

Klärner, Frank-Gerrit, Kahlert, Björn·2003·Accounts of Chemical Research

Abstract

The molecular tweezers (1, 2) and clips (3-7) containing naphthalene and benzene spacer units can be synthesized via repetitive Diels-Alder reactions by the use of a molecular "Lego" set consisting of bisdienophiles (8, 9, 14) and dienes (10, 13). The new receptors selectively bind electron-deficient neutral and cationic substrates in solution. Only the benzene-spaced tweezers form complexes with aliphatic substrates, whereas the other receptors bind aromatic substrates preferentially. HPLC studies with 1 and 2 chemically bonded to stationary phases give similar results for the heterogeneous systems. The formation of stable complexes between the water-soluble clip 5g and N-alkylpyridinium cations, such as N-methylnicotinamide and NAD(+), in aqueous solution illustrates the importance of the hydrophobic effect for arene-arene interactions. The dynamics of the complex formation and substrate mobility were investigated by the use of temperature-dependent liquid- and solid-state NMR spectroscopy. The electrostatic potential surface (EPS) of 1-7 is calculated to be surprisingly negative on the concave side of each molecule and, hence, complementary to the EPS of the electron-deficient substrates, suggesting that the attractive receptor-substrate interaction is here of predominantly electrostatic nature.

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Metadata

Authors
Klärner, F.-G., & Kahlert, B.
Venue
Accounts of Chemical Research
Published
2003-10-18
Volume
36
Issue
12
Pages
919-932
ISSN
  • 0001-4842 (ISSN-L)
  • 1520-4898
OpenAlex
W2145572439
Cited by
375
References
21
FWCI
9.16
Type
journal article
Language
en
Open access
closed

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