Fig. 2: Crystal structures and bonding properties of Al2S3.
From: The exotically stoichiometric compounds in Al–S system under high pressure
a P4/mbm structure at 150 GPa. b P-1 structure at 200 GPa with unique isolated S1 sulfur atoms shown in blue. c Calculated ELF of the P4/mbm phase on (0 0 1) plane at 150 GPa. d ELF calculated on the (2 3 1) plane of the P-1 phase at 200 GPa.
