Alkali, Quaternary, Cerny

• B-H-Li-Sc
• B-Cs-H-Li
• Al-B-H-Li
• B-Ca-H-Rb
• B-Ca-H-K
• structural properties
• phase diagram
• phase transitions
• optical properties
• quaternary
• alkali
• metalloid
• transitional
• rare earth
• orthorhombic
• monoclinic
• tetragonal
• cubic
• hexagonal