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Thermal behavior of ammonium octafluorodirhenate(III)

Journal Article · · Research on Chemical Intermediates
The thermal behavior of (NH4)2[Re2F8]·2H2O salt was studied in the temperature range 150–700 °C under flowing nitrogen gas. The decomposition products were studied by powder X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Results are consistent with the formation of (NH4)2[Re2F8] salt at 150 °C, amorphous rhenium metal at 300 and 400 °C, and crystalline rhenium metal at 500 and 700 °C. A mechanism of formation of rhenium metal from (NH4)2[Re2F8]·2H2O was proposed. Here, the effect of crystallite size and lattice strain was evaluated at 500 and 700 °C from powder XRD peak broadenings using both Williamson–Hall and the modified Scherrer methods.
Research Organization:
Univ. of Nevada, Las Vegas, NV (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003180; NA0003948
OSTI ID:
1907466
Journal Information:
Research on Chemical Intermediates, Journal Name: Research on Chemical Intermediates Journal Issue: 1 Vol. 49; ISSN 0922-6168
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Group 7 Metal-Metal Bonds book January 2015
A Decade of Dinuclear Technetium Complexes with Multiple Metal-Metal Bonds: A Decade of Dinuclear Technetium Complexes with Multiple M-M Bonds journal June 2014
Uncovering Multiple Metal-Metal Bonding in a Tetranuclear Fluoride Rhenium Cluster or the Curious Case of {[Ni(H 2 O) 6 ](NH 4 ) 4 }[Re 4 F 18 ]·4H 2 O: Uncovering Multiple Metal-Metal Bonding in a Tetranuclear Fluoride Rhenium Cluster or the Curious Case of {[Ni(H 2 O) 6 ](NH 4 ) 4 }[Re 4 F 18 ]·4H 2 O journal October 2019
Difluorotetrakis(2-oxypyridine)dirhenium(III) - Preparation, Crystallographic Structure, and Electrochemical Properties: Difluorotetrakis(2-oxypyridine)dirhenium(III) - Preparation, Crystallographic Structure, and Electrochemical Properties journal December 2018
Reaction of (n-Bu4N)2[Re2Cl8] with a 2-Oxocarboxylic Acid: Crystallographic Characterization of a New Dirhenate(III) Complex journal April 2011
New loading method for high precision Sm isotope analysis of nuclear materials using thermal ionization mass spectrometry journal January 2021
X-ray absorption fine structure spectroscopic study of (NH4)2ReF6 journal October 2019
The reaction of the octachlorodirhenate(III) ion with methyl isocyanide giving the pentachloro(methylisocyano)rhenium(IV) ion journal January 1979
Photochemical behavior of the quadruply metal-metal bonded [Tc2Cl8]2− anion in acetonitrile journal November 2016
Recycling of rhenium-containing wire scrap journal May 2015
Assessment of supply interruption of rhenium, recycling, processing sources and technologies journal August 2019
Towards mid-valent rhenium fluoro-phosphine complexes via hexafluoridorhenate(IV) anion pathway assisted by trifluoro acetic acid journal September 2020
Conversion of (NH4)2[ReF6] into ReO2 mixed phases: A thermal analysis study journal June 2022
Structural and spectral studies of hydrated hexaamminecobalt(III)–hexafluororhenate(IV) journal December 2021
X-ray analysis of ZnO nanoparticles by Williamson–Hall and size–strain plot methods journal January 2011
Octafluorodirhenate(III) Revisited: Solid-State Preparation, Characterization, and Multiconfigurational Quantum Chemical Calculations journal May 2016
Expanding the Chemistry of Rhenium Metal–Metal Bonded Fluoro Complexes: Facile Preparation and Characterization of Paddlewheel Complexes journal December 2017
Thermal Analysis of Benzotriazolium Perrhenate and Its Implication to Rhenium Metal journal September 2021
Recent Advances in Technetium Halide Chemistry journal December 2013
Resonance Raman and electronic spectral study of the octafluoro-, octachloro-, octabromo-, and octaiododirhenate(III) ions. Resonance Raman spectra and excitation profiles at resonance with the .delta.* .rarw. .delta., .delta.* .rarw. (X).pi., and putative .pi.* .rarw. .pi. bands journal April 1983
Spectroscopy and structure of quadruply bonded complexes under extreme pressure (Re2X82-, Mo2Cl4(PMe3)4) journal September 1990
The Electronic Spectrum of Re 2 Cl 8 2 - :  A Theoretical Study journal March 2003
β-Technetium Trichloride: Formation, Structure, and First-Principles Calculations journal April 2012
Technetium Tetrachloride Revisited: A Precursor to Lower-Valent Binary Technetium Chlorides journal July 2012
Probing the Presence of Multiple Metal–Metal Bonds in Technetium Chlorides by X-ray Absorption Spectroscopy: Implications for Synthetic Chemistry journal August 2012
Compounds Containing Dirheniurm(III) Octahalide Anions journal March 1965
The Crystal and Molecular Structure of Dipotassium Octachlorodirhenate(III) Dihydrate, K 2 [Re 2 Cl 8 ]2H 2 O journal March 1965
Preparation and Spectra of Some Adducts of the Nonachlorotrirhenium and Nonabromotrirhenium Groups; Evidence for the Re3Br9 Group journal April 1965
Technetium(IV) Halides Predicted from First-Principles journal June 2009
X-ray absorption study of octafluorodirhenate(III): EXAFS structures and resonance Raman spectroscopy of octahalodirhenates journal February 1988
Investigations of quadruple bonds by polarized crystal spectra. I. The interpretation of the spectrum of tetra(n-butylammonium) octachlorodirhenate. The disordered crystal structure journal May 1976
Synthesis and Structure of Technetium Trichloride journal November 2010
Technetium Dichloride: A New Binary Halide Containing Metal–Metal Multiple Bonds journal June 2011
Preparation of the Binary Technetium Bromides: TcBr 3 and TcBr 4 journal December 2008
Probing the Electronic Structure and Metal−Metal Bond of Re 2 Cl 8 2 - in the Gas Phase journal March 2000
NIH Image to ImageJ: 25 years of image analysis journal June 2012
Crystal structure of octabromoditechnetate(iii) and a multi-configurational quantum chemical study of the δ→δ* transition in quadruply bonded [M2X8]2− dimers (M = Tc, Re; X = Cl, Br) journal January 2009
Assessment of crystallite size and strain of CaCu 3 Ti 4 O 12 prepared via conventional solid‐state reaction journal March 2016
Rhenium - A Unique Rare Metal journal November 1994
The improvement of rhenium recovery technology from W-Re alloys journal November 2018
Scherrer after sixty years: A survey and some new results in the determination of crystallite size journal April 1978
Syntheses, Raman spectroscopy and crystal structures of alkali hexafluoridorhenates(IV) revisited journal April 2018
An unexpected rhenium(IV)–rhenium(VII) salt: [Co(NH 3 ) 6 ] 3 [Re VII O 4 ][Re IV F 6 ] 4 ·6H 2 O
  • Louis–Jean, James; Mariappan Balasekaran, Samundeeswari; Hagenbach, Adelheid
  • Acta Crystallographica Section E Crystallographic Communications, Vol. 75, Issue 8 https://doi.org/10.1107/S2056989019009757
journal July 2019
Mononuclear and Polynuclear Chemistry of Rhenium (III): Its Pronounced Homophilicity journal September 1964
Kristallstruktur und Schwingungsspektren von [(n — C4H9)4N]2[Re2F8]·2(C2H5)2O / Crystal Structure and Vibration Spectra of [(n—C4H9)4N]2[Re2F8] · 2(C2H5)2O journal April 1990

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