A molecular chameleon: Chromophoric sensing by a self-complexing molecular assembly

Angewandte Chemie - International Edition

Volumn 37, Issue 7, 1998, Pages 975-979

  Wolf, Reinhard ^a   Asakawa, Masumi ^a   Ashton, Peter R ^a   Gómez López, Marcos ^a   Hamers, Christoph ^a   Menzer, Stephan ^b   Parsons, Ian W ^a   Spencer, Neil ^a   Stoddart, J Fraser ^a,c   Tolley, Malcolm S ^a   Williams, David J ^b  

^a UNIVERSITY OF BIRMINGHAM   (United Kingdom)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

^c UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

Chromophores; Molecular devices; Nanostructures; Receptors; Supramolecular chemistry

Indexed keywords

EID: 0031961088     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1521-3773(19980420)37:7<975::AID-ANIE975>3.0.CO;2-L     Document Type: Article

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34. 1H NMR time scale at room temperature.
35. 4+ is a changeable entity, both in terms of its conformation and color, we like to refer to it as a "molecular chameleon". The term "catenane chameleons" has already been used: D. A. Leigh, K. Moody, J. P. Smart, K. J. Watson, A. M. Z. Slawin, Angew. Chem. 1996, 108, 326-331; Angew. Chem. Int. Ed. Engl. 1996, 35, 306-310.
36. 4+ is a changeable entity, both in terms of its conformation and color, we like to refer to it as a "molecular chameleon". The term "catenane chameleons" has already been used: D. A. Leigh, K. Moody, J. P. Smart, K. J. Watson, A. M. Z. Slawin, Angew. Chem. 1996, 108, 326-331; Angew. Chem. Int. Ed. Engl. 1996, 35, 306-310.
37. -3. Crystallographic data (excluding structure factors) for the structure reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication no. CCDC-100741. Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB21EZ, UK (fax: (+ 44) 1223-336-033; e-mail: deposit@ccdc.cam.ac.uk).
38. [5a] are 5 and 22°, respectively.
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42. 4+ are free to associate with complementary guests.
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49. Note added in proof (March 16, 1998): A self-complexing TTF macrocyle that can be switched has just appeared in the literature: see M. B. Nielsen, S. B. Nielsen, J. Becher, Chem. Commun. 1998, 475-476.