C-H-Y, H-x polyhedra, Organic

• C-Co-H-Y
• C-H-N-O-Y
• C-Dy-H-O-U-Y
• thermal and thermodynamic properties
• electronic and electrical properties
• structural properties
• electronic energy gap
• heat capacity
• transitional
• rare earth
• organic
• disordered
• trigonal
• monoclinic
• tetragonal