Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution

Brodbeck R, Tönsing T, Andrae D, Volkmer D (2008)
JOURNAL OF PHYSICAL CHEMISTRY B 112(16): 5153-5162.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We report on molecular dynamics simulations of dendrimer-encapsulated alpha-Keggin ions in trichloromethane solution. The simulations were done within the NVE ensemble at temperatures around T = 300 K. The eight examined systems are model compounds for dendrizymes, a hybrid material where a polyoxometalate ion (the core) is surrounded by amphiphilic cationic dendrimers (the shell) such that the complete system may exhibit enzyme-like regioselectivity and substrate selectivity, e.g., in olefin oxidation. The influence of dendrimer type, dendrimer generation, and number of dendritic cations bound by electrostatic interaction to the polyoxometalate core on the structure and dynamics of the shell has been studied. It is shown that the resulting distribution of trichloromethane molecules within the shell may serve as an indicator for the shell's permeability for small molecules. The dendritic shell causes a size exclusion effect that influences the access of small molecules to the central polyoxometalate ion, i.e., to that part where the enzyme-like reaction of a dendrizyme is supposed to take place.
Erscheinungsjahr
2008
Zeitschriftentitel
JOURNAL OF PHYSICAL CHEMISTRY B
Band
112
Ausgabe
16
Seite(n)
5153-5162
ISSN
1520-6106
eISSN
1520-5207
Page URI
https://pub.uni-bielefeld.de/record/1588425

Zitieren

Brodbeck R, Tönsing T, Andrae D, Volkmer D. Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution. JOURNAL OF PHYSICAL CHEMISTRY B. 2008;112(16):5153-5162.
Brodbeck, R., Tönsing, T., Andrae, D., & Volkmer, D. (2008). Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution. JOURNAL OF PHYSICAL CHEMISTRY B, 112(16), 5153-5162. doi:10.1021/jp710215u
Brodbeck, R., Tönsing, T., Andrae, D., and Volkmer, D. (2008). Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution. JOURNAL OF PHYSICAL CHEMISTRY B 112, 5153-5162.
Brodbeck, R., et al., 2008. Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution. JOURNAL OF PHYSICAL CHEMISTRY B, 112(16), p 5153-5162.
R. Brodbeck, et al., “Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution”, JOURNAL OF PHYSICAL CHEMISTRY B, vol. 112, 2008, pp. 5153-5162.
Brodbeck, R., Tönsing, T., Andrae, D., Volkmer, D.: Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution. JOURNAL OF PHYSICAL CHEMISTRY B. 112, 5153-5162 (2008).
Brodbeck, Ralf, Tönsing, Thorsten, Andrae, Dirk, and Volkmer, Dirk. “Molecular dynamics simulations of dendrimer-encapsulated alpha-keggin ions in trichloromethane solution”. JOURNAL OF PHYSICAL CHEMISTRY B 112.16 (2008): 5153-5162.

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