Deuterium, Nonmetal, Temperature for structural transition

• H-N-O-Se
• Cl-H-N-Te
• H-K-O-P
• As-H-K-O
• H-La
• nonmetal
• deuterium
• chalcogen
• pnictogen
• quaternary
• monoclinic
• orthorhombic
• cubic
• tetragonal
• triclinic