Chalcogen, Transitional, Na-P, Orthorhombic

• F-Fe-Na-O-P
• Co-Na-O-P
• Fe-Na-O-P
• Na-O-P-V
• Na-Ni-O-P
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• phase transitions
• thermal expansion
• transitional
• alkali
• pnictogen
• chalcogen