An Electrochemically Controllable Nanomechanical Molecular System Utilizing Edge-to-Face and Face-to-Face Aromatic Interactions
摘要:
[GRAPHICS]A new molecular system, 2,11-dithio[4,4]metametaquinocyclophane containing a quinone moiety; was designed and synthesized. As the quinone moiety can readily be converted into an aromatic pi-system (hydroquinone) upon reduction, the nanomechanical molecular cyclophane system exhibits a large flapping motion like a molecular flipper from the electrochemical redox process. The conformational changes upon reduction and oxidation are caused by changes of nonbonding interaction forces (devoid of bond formation/breaking) from the edge-to-face to face-to-face aromatic interactions and vice versa, respectively.
An Electrochemically Controllable Nanomechanical Molecular System Utilizing Edge-to-Face and Face-to-Face Aromatic Interactions
摘要:
[GRAPHICS]A new molecular system, 2,11-dithio[4,4]metametaquinocyclophane containing a quinone moiety; was designed and synthesized. As the quinone moiety can readily be converted into an aromatic pi-system (hydroquinone) upon reduction, the nanomechanical molecular cyclophane system exhibits a large flapping motion like a molecular flipper from the electrochemical redox process. The conformational changes upon reduction and oxidation are caused by changes of nonbonding interaction forces (devoid of bond formation/breaking) from the edge-to-face to face-to-face aromatic interactions and vice versa, respectively.
An Electrochemically Controllable Nanomechanical Molecular System Utilizing Edge-to-Face and Face-to-Face Aromatic Interactions
作者:Heon Gon Kim、Chi-Wan Lee、Sunggoo Yun、Byung Hee Hong、Young-Ok Kim、Dongwook Kim、Hyejae Ihm、Jung Woo Lee、Eun Cheol Lee、P. Tarakeshwar、Su-Moon Park、Kwang S. Kim
DOI:10.1021/ol0268541
日期:2002.10.1
[GRAPHICS]A new molecular system, 2,11-dithio[4,4]metametaquinocyclophane containing a quinone moiety; was designed and synthesized. As the quinone moiety can readily be converted into an aromatic pi-system (hydroquinone) upon reduction, the nanomechanical molecular cyclophane system exhibits a large flapping motion like a molecular flipper from the electrochemical redox process. The conformational changes upon reduction and oxidation are caused by changes of nonbonding interaction forces (devoid of bond formation/breaking) from the edge-to-face to face-to-face aromatic interactions and vice versa, respectively.