Rotation-libration in a hierarchic supramolecular rotor-stator system: arrhenius activation and retardation by local interaction.
نویسندگان
چکیده
Fourfold symmetric zinc-octaethylporphyrin (OEP) has been incorporated in the holes of the hexagonal molecular network generated by thermal dehydrogenation of 4,9-diaminoperylene-quinone-3,10-diimine (DPDI) on a Cu(111) surface and displayed hindered rotation; the reorganization between the potential minima, a rotation-libration, which is characterized by an activation energy of ED=0.17+/-0.03 eV, has been monitored in the STM tunnelling currents as a bi-state "switching".
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ورودعنوان ژورنال:
- Chemical communications
دوره 13 شماره
صفحات -
تاریخ انتشار 2007