A new combined nuclear magnetic resonance and Raman spectroscopic probe applied toin situinvestigations of catalysts and catalytic processes

2014 ◽  
Vol 85 (6) ◽  
pp. 063111 ◽  
Author(s):  
Jules C. J. Camp ◽  
Michael D. Mantle ◽  
Andrew P. E. York ◽  
James McGregor
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Raman Spectroscopic ◽  
Catalytic Processes ◽  
Spectroscopic Probe ◽  
Nuclear Magnetic

A 19F nuclear magnetic resonance and Raman spectroscopic investigation of the reaction of iodine oxide pentafluoride with the Lewis acids, antimony and arsenic pentafluoride

1978 ◽  
Vol 56 (17) ◽  
pp. 2253-2258 ◽  
Author(s):  
Morley Brownstein ◽  
Ronald J Gillespie ◽  
John P. Krasznai
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Raman Spectroscopy ◽  
Magnetic Resonance ◽  
Low Temperature ◽  
Oxygen Atom ◽  
Spectroscopic Investigation ◽  
Lewis Acids ◽  
Raman Spectroscopic ◽  
Nuclear Magnetic

The reactions of IOF5 with SbF5 and with AsF5 have been investigated at low temperature by 19F nmr and Raman spectroscopy. It was found that SbF5 forms labile 1:1 and 2:1 complexes whereas AsF5 forms only a 1:1 complex. The IOF5 is bound through its oxygen atom to the Lewis acids AsF5, SbF5, or (SbF5)2.

13C Solid State Nuclear Magnetic Resonance and µ-Raman Spectroscopic Characterization of Sicilian Amber

2016 ◽  
Vol 70 (8) ◽  
pp. 1346-1355 ◽  
Author(s):  
Germana Barone ◽  
Donatella Capitani ◽  
Paolo Mazzoleni ◽  
Noemi Proietti ◽  
Simona Raneri ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Spectroscopic Characterization ◽  
Raman Spectroscopic ◽  
Nuclear Magnetic

A 19F Nuclear Magnetic Resonance and Raman Spectroscopic Study of Complex Formation between Antimony Pentafluoride and the Pentafluorides of Niobium and Tantalum

1971 ◽  
Vol 49 (10) ◽  
pp. 1736-1746 ◽  
Author(s):  
P. A. W. Dean ◽  
R. J. Gillespie
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Raman Spectrum ◽  
Magnetic Resonance ◽  
Antimony Pentafluoride ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Unusual Distribution ◽  
Liquid Systems ◽  
Mixed Transition ◽  
Nuclear Magnetic

The low temperature 19F nuclear magnetic resonance (n.m.r.) spectra of NbF5–SbF5–SO2ClF and TaF5–SbF5–SO2ClF systems appear to indicate ionization of the pentafluorides to form niobium (tantalum) fluorocations and antimony polyfluoroanions, but the solutions show an unusual distribution of species and have very low conductivities. It is concluded that neutral "fluxional" MF4–SbnF5n+1 molecules are formed. The 19F n.m.r. spectra and conductivities of the liquid systems NbF5–SbF5 and TaF5–SbF5 are consistent with the formation of neutral fluorine-bridged polymers with mixed transition metal and antimony units. These polymers may be "fluxional" on the n.m.r. time scale. The Raman spectra of the liquid systems and the crystalline pentafluoride mixtures show that both contain mixed cis fluorine-bridged units. The Raman spectrum of crystalline SbF5 and the 19F n.m.r. spectrum of the NbSbF11− ion are reported.

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