Deuterium, H-O, Temperature for structural transition

• H-N-O-Se
• H-K-O-P
• As-H-K-O
• Cs-H-O-P
• H-N-O-S
• chalcogen
• deuterium
• quaternary
• nonmetal
• pnictogen
• monoclinic
• orthorhombic
• tetragonal
• triclinic
• trigonal