Chalcogen, Rare earth, Charge transfer

• Ba-Cu-O-Y
• Se-Tm
• La-Mn-O
• Ca-La-Mn-O
• La-Mn-O-Sr
• effective charge
• values of valence or charge transfer
• electron density maps
• average number of 4f electrons
• chalcogen
• rare earth
• lanthanoid
• transitional
• oxide
• orthorhombic
• tetragonal
• cubic
• trigonal
• monoclinic