Chalcogen, Rare earth, Transitional, Charge transfer

• Ba-Cu-O-Y
• La-Mn-O
• Ca-La-Mn-O
• La-Mn-O-Sr
• Cu-La-O-Sr
• effective charge
• values of valence or charge transfer
• electron density maps
• transitional
• chalcogen
• rare earth
• lanthanoid
• oxide
• orthorhombic
• tetragonal
• trigonal
• cubic
• monoclinic