On the way to supramolecular photochemistry at the single-molecule level

Schaefer C, Decker B, Letzel M, Novara F, Eckel R, Ros R, Anselmetti D, Mattay J (2006)
Pure and Applied Chemistry 78(12): 2247-2259.

Journal Article | Published | English

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Abstract
Two examples of artificial supramolecular host-guest systems derived from resorc[4]arenes (calix[n]arenes based on resorcinol) and ammonium ions as guests have been studied by atomic force microscopy (AFM). For the first time, real single-molecule events have been determined for this type of supramolecular complexes and off-rates as well as molecular parameters of single-molecule aggregates such as the depths of the binding pocket (molecular length parameter) could be measured by applying the methods of dynamic force spectroscopy. In addition, this technique was also applied to differentiate between the two states (open and closed) of a photoswitchable resorc[4]arene-anthracene tweezer. An investigation of the exchange rates of various complexes in the gas phase by means of Fourier transform ion cyclotron resonance (FTICR) mass spectrometry confirmed the results of the AFM study.
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Schaefer C, Decker B, Letzel M, et al. On the way to supramolecular photochemistry at the single-molecule level. Pure and Applied Chemistry. 2006;78(12):2247-2259.
Schaefer, C., Decker, B., Letzel, M., Novara, F., Eckel, R., Ros, R., Anselmetti, D., et al. (2006). On the way to supramolecular photochemistry at the single-molecule level. Pure and Applied Chemistry, 78(12), 2247-2259.
Schaefer, C., Decker, B., Letzel, M., Novara, F., Eckel, R., Ros, R., Anselmetti, D., and Mattay, J. (2006). On the way to supramolecular photochemistry at the single-molecule level. Pure and Applied Chemistry 78, 2247-2259.
Schaefer, C., et al., 2006. On the way to supramolecular photochemistry at the single-molecule level. Pure and Applied Chemistry, 78(12), p 2247-2259.
C. Schaefer, et al., “On the way to supramolecular photochemistry at the single-molecule level”, Pure and Applied Chemistry, vol. 78, 2006, pp. 2247-2259.
Schaefer, C., Decker, B., Letzel, M., Novara, F., Eckel, R., Ros, R., Anselmetti, D., Mattay, J.: On the way to supramolecular photochemistry at the single-molecule level. Pure and Applied Chemistry. 78, 2247-2259 (2006).
Schaefer, Christian, Decker, Bjoern, Letzel, Matthias, Novara, Francesca, Eckel, Rainer, Ros, Robert, Anselmetti, Dario, and Mattay, Jochen. “On the way to supramolecular photochemistry at the single-molecule level”. Pure and Applied Chemistry 78.12 (2006): 2247-2259.
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