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Crystal-chemistry and vibrational spectroscopy of ferrinatrite, Na3[Fe(SO4)3]·3H2O, and its high-temperature decomposition

DOI: 10.1007/s00269-018-0991-9 DOI Help

Authors: Gennaro Ventruti (Università di Bari “Aldo Moro”) , Giancarlo Della Ventura (Università Roma Tre) , Maria Lacalamita (Università di Pisa) , Marco Sbroscia (Università Roma Tre) , Armida Sodo (Università Roma Tre) , Jasper R. Plaisier (Elettra - Sincrotrone Trieste) , Gianfelice Cinque (Diamond Light Source) , Emanuela Schingaro (Università di Bari “Aldo Moro”)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physics And Chemistry Of Minerals , VOL 50

State: Published (Approved)
Published: July 2018
Diamond Proposal Number(s): 17483

Abstract: The crystal structure of ferrinatrite, Na3[Fe(SO4)3]·3H2O, was refined based on a new single-crystal X-ray diffraction experiment on a sample from the type locality Sierra Gorda, Chile. The data allowed H to be successfully located and the H-bonding system to be defined. Infrared and Raman spectra are presented and discussed for this compound on the basis of the crystal structure. The Oacceptor···H–Odonor bond distances determined from the structure refinement agree well with the geometric correlation obtained from spectroscopic data. The thermal stability and dehydration process of ferrinatrite was investigated by in situ high temperature (HT) synchrotron X-ray powder diffraction, Raman and Fourier transform infrared spectroscopies.

Journal Keywords: Ferrinatrite; Single crystal XRD; Hydrogen bonding; Thermal stability; HT FTIR and Raman

Subject Areas: Chemistry

Instruments: B22-Multimode InfraRed imaging And Microspectroscopy