Coplanar triangle 3-vertex, Disordered, Electrical conductivity

• C-H-N-O
• Bi-Fe-O
• Cu-La-O
• Li-O-V
• Ba-Fe-O
• disordered
• chalcogen
• transitional
• oxide
• hexagonal
• orthorhombic
• monoclinic
• tetragonal
• trigonal