"79" . "3"^^ . . "A vibrational spectroscopic study of hydrated Fe3+ hydroxyl-sulfates; polymorphic minerals butlerite and parabutlerite" . . "A vibrational spectroscopic study of hydrated Fe3+ hydroxyl-sulfates; polymorphic minerals butlerite and parabutlerite"@en . "Raman and infrared spectra of two polymorphous minerals with the chemical formula Fe3+(SO4)(OH). 2H2O, monoclinic butlerite and orthorhombic parabutlerite, are studied and the spectra assigned. Observed bands are attributed to the (SO4)2- stretching and bending vibrations, hydrogen bonded water molecules, stretching and bending vibrations of hydroxyl ions, water librational modes, Fe-O and Fe-OH stretching vibrations, Fe-OH bending vibrations and lattice vibrations. The O-H ... O hydrogen bond lengths in the structures of both minerals are calculated from the wavenumbers of the stretching vibrations. One symmetrically distinct (SO4)2- unit in the structure of butlerite and two symmetrically distinct (SO4)2- units in the structure of parabutlerite are inferred from the Raman and infrared spectra. This conclusion agrees with the published crystal structures of both mineral phases." . "[B0C3E2FEB775]" . . "Bahfenne, Silmarilly" . "000293363000076" . "RIV/00023272:_____/11:#0001564" . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . . . "8"^^ . . "Palmer, Sara J." . "I, Z(MK00002327201)" . . . "10.1016/j.saa.2011.04.069" . . "Spectrochimica Acta Part A-Molecular and biomolecular spectroscopy" . "6"^^ . "\u010Cejka, Ji\u0159\u00ED" . . . "Sejkora, Ji\u0159\u00ED" . "5" . "Raman and infrared spectra of two polymorphous minerals with the chemical formula Fe3+(SO4)(OH). 2H2O, monoclinic butlerite and orthorhombic parabutlerite, are studied and the spectra assigned. Observed bands are attributed to the (SO4)2- stretching and bending vibrations, hydrogen bonded water molecules, stretching and bending vibrations of hydroxyl ions, water librational modes, Fe-O and Fe-OH stretching vibrations, Fe-OH bending vibrations and lattice vibrations. The O-H ... O hydrogen bond lengths in the structures of both minerals are calculated from the wavenumbers of the stretching vibrations. One symmetrically distinct (SO4)2- unit in the structure of butlerite and two symmetrically distinct (SO4)2- units in the structure of parabutlerite are inferred from the Raman and infrared spectra. This conclusion agrees with the published crystal structures of both mineral phases."@en . "RIV/00023272:_____/11:#0001564!RIV12-MK0-00023272" . "1386-1425" . "Frost, Ray Leslie" . "184251" . . . "A vibrational spectroscopic study of hydrated Fe3+ hydroxyl-sulfates; polymorphic minerals butlerite and parabutlerite" . "Pl\u00E1\u0161il, Jakub" . . . . . . . . "butlerite; parabutlerite; iron (III) sulfates; Raman spectroscopy; Infrared spectroscopy"@en . "A vibrational spectroscopic study of hydrated Fe3+ hydroxyl-sulfates; polymorphic minerals butlerite and parabutlerite"@en .