Photoswitchable intramolecular through-space magnetic interaction |
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| Authors: | Wang Jiaobing Hou Lili Browne Wesley R Feringa Ben L |
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| Institution: | Centre for Systems Chemistry, Stratingh Institute for Chemistry, and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands. |
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| Abstract: | The interaction between two TEMPO spin centers connected to a photoswitchable overcrowded alkene changes from noncoupled (three-line EPR spectrum) in the trans state, where the two spin centers are separated by ～22 ?, to strongly coupled (five-line EPR spectrum) in the cis state, where the separation is ～7 ?, upon photoswitching. Importantly, the performance of the alkene switching unit is essentially unaffected by the spin centers. |
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