Alkali, Non-disordered, Nonmetal, Temperature for structural transition

• K-Li-O-S
• H-K-O-P
• F-K-Mn
• H-O-P-Rb
• Cl-Rb-Zn
• non-disordered
• nonmetal
• alkali
• chalcogen
• ferroelectric
• orthorhombic
• monoclinic
• tetragonal
• cubic
• trigonal