Borate, Chalcogen, Nonmetal, Phonons

• B-H-K-Mg-O
• B-Br-O-Pb
• B-Cu-O
• B-Ba-F-O
• B-H-Mg-O
• infrared spectra
• wavenumber of optical phonon
• vibrational spectra
• Raman spectra
• wavenumber of longitudinal optical phonon
• nonmetal
• borate
• chalcogen
• metalloid
• non-disordered
• orthorhombic
• monoclinic
• triclinic
• trigonal
• tetragonal