https://www.selleckchem.com/pr....oducts/PD-0325901.ht
A new class of macrocyclic arenes, 3,6-fluoren[5]arenes, were conveniently synthesized in good yields by one-step reaction. The 3,6-fluoren[5]arenes had symmetric pentagon structures with big and rich-electron cavities, which made them form 1 1 complexes with fullerenes C60 and C70. The association constants of the complexes were all greater than 105 M-1.Scanning probe microscopies allow investigating surfaces at the nanoscale, in real space and with unparalleled signal-to-noise ratio. However, these microscopies are not used as muc