Monoclinic, Nonmetal, Quaternary, Structural transitions

• H-N-O-S
• K-Na-Nb-O
• H-Na-O-Se
• Cs-H-O-P
• Cs-H-O-S
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• structural transition
• nonmetal
• quaternary
• chalcogen
• non-disordered
• disordered