Pseudotenfold symmetry in pentane-solvated C60 and C70
作者： R. M. Fleming , A. R. Kortan , B. Hessen , T. Siegrist , F. A. Thiel
关键词: Optics 、 Symmetry (physics) 、 Molecule 、 Crystal morphology 、 Golden ratio 、 Crystallography 、 Quasicrystal 、 X-ray crystallography 、 Diffraction 、 Materials science 、 Pentane
摘要: Crystals of C60 or C70 cocrystallized with n-pentane grow as elongated, ten-sided columns. X-ray diffraction shows ordering molecules along the column and a remarkable tenfold symmetry normal to column. The ratio x-ray-diffraction vectors two lowest-order spots is nearly equal “golden ratio,” τ. Despite these similarities decagonal, quasicrystalline order, indicates crystalline order twinned unit cell.
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