Na4Al3Si3CNO13 crystallizes in the orthorhombic Ccc2 space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to four O2- atoms to
The bonding concepts in polyhalogen anions is of great interest because of its central importance in chemistry. However, the database of polyhalogen anions is very limited to have a general concept of