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Chirality transfer from single molecules into self-assembled monolayers
被引:177
|作者:
Fasel, R
[1
]
Parschau, M
[1
]
Ernst, KH
[1
]
机构:
[1] Swiss Fed Labs Mat Testing & Res, Mol Surface Technol, CH-8600 Dubendorf, Switzerland
关键词:
chirality;
helical structures;
monolayers;
scanning probe microscopy;
self-assembly;
D O I:
10.1002/anie.200352232
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
One hand is better than two! Chirality transfer from the single molecule into a two-dimensional layer is investigated by STM. The supramolecular handedness in homochiral heptahelicene layers, generated on a single-crystal surface (see picture), results from the orientations of next-neighbor molecules. The intermolecular interaction is dominated by steric repulsive forces between the rigid helices, causing a direct transfer of chirality.
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页码:5178 / 5181
页数:4
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