Electron-diffraction study ofSbCl5-intercalated graphite

Abstract
Using high-resolution electron diffraction we have studied the in-plane superlattice structure of stage-2, -3, and -4 antimony pentachlorideintercalated graphite. We used an analytical scanning transmission electron microscope with a microdiffraction resolution of 100 Å. The samples were examined over a wide temperature range (77295 K) with no indication of any phase change. Two previously unknown long-range superlattices, with structures (√31 × √31 )R±8.95° and (√19 × √19 )R±23.4°, and unit cells with long-range molecular orientational ordering were found.