Monoclinic, Optics, Quaternary

• Cs-H-O-S
• Li-O-Rb-S
• Cr-H-La-O
• Cr-H-O-Pr
• Cr-H-Nd-O
• phonons
• wavenumber of optical phonon
• luminescence
• Raman spectra
• optical absorption
• quaternary
• chalcogen
• non-disordered
• transitional
• nonmetal