CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P.R.China.
College of Chemistry, Beijing Normal University , Beijing 100875, P.R.China.
J Org Chem. 2017 Dec 1;82(23):12106-12111. doi: 10.1021/acs.joc.7b01864. Epub 2017 Nov 3.
Two triptycene rotators have been covalently linked to the backbone of a quinquepyridine (QPY) foldamer at the second and fourth pyridine rings, respectively, to form molecular spur gears. The studies revealed that a QPY foldamer as a stator can reversibly control the intermeshed and demeshed states of molecular spur gears due to the linear-to-helical conformational switching triggered by complexation/decomplexation.
两个三联苯旋转体分别通过共价键连接到五吡啶(QPY)发夹体的第二个和第四个吡啶环的骨架上,形成分子正齿轮。研究表明,由于通过络合/去络合触发的线性到螺旋构象转换,QPY 发夹体作为定子可以可逆地控制分子正齿轮的啮合和脱开状态。