Chalcogen, Enthalpy change at phase transition, Trigonal

• H-N-O-Se
• Li-O-V
• O-Si
• O-Zr
• In-Se
• enthalpy change at structural transition
• enthalpy change at melting point
• enthalpy change at decomposition
• enthalpy change at peritectoid decomposition
• chalcogen
• non-disordered
• oxide
• transitional
• nonmetal