Monoclinic, Non-disordered, Pssaba, Structural transitions

• H-N-O-Se
• H-Na-O-Se
• Ga-Se-Tl
• In-S-Tl
• H-N-O-S
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• non-disordered
• chalcogen
• ferroelectric
• nonmetal
• quaternary