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Racemization of Chiral Pd2Au36(SC2H4Ph)24 : Doping Increases the Flexibility of the Cluster Surface

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Published in Journal of the American Chemical Society. 2014, vol. 136, no. 41, p. 14361-14364
Abstract Pd2Au36(SC2H4Ph)24 clusters have been prepared, isolated and separated in their enantiomers. Compared to the parent Au38(SC2H4Ph)24 cluster the doping leads to a significant change of the circular dichrosim spectrum, however, the anisotropy factors are of similar magnitude in both cases. Isolation of the enantiomers allowed us to study the racemi-zation of the chiral cluster, which reflects the flexibility of the ligand shell composed of staple motifs. The doping leads to a substantial lowering of the racemization temperature. The change in activation parameters due to the doping may be solely due to modification of the electronic structure.
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Other version: http://pubs.acs.org/doi/abs/10.1021/ja507189v
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Research group Groupe Bürgi
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BARRABES RABANAL, Noëlia, ZHANG, Bei, BUERGI, Thomas. Racemization of Chiral Pd2Au36(SC2H4Ph)24 : Doping Increases the Flexibility of the Cluster Surface. In: Journal of the American Chemical Society, 2014, vol. 136, n° 41, p. 14361-14364. https://archive-ouverte.unige.ch/unige:41529

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Deposited on : 2014-11-04

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