Hexafluorobromine(VII) cation, BrF6+. Preparation of hexafluorobromine(1+) hexafluoroarsenate(1-) and hexafluorobromine(1+) -fluorodecafluorodinabinonate(1-) and characterization by fluorine-19 nuclear magnetic resonance and Raman spectroscopy

1974 ◽  
Vol 13 (5) ◽  
pp. 1230-1235 ◽  
Author(s):  
R. J. Gillespie ◽  
G. J. Schrobilgen
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Raman Spectroscopy ◽  
Magnetic Resonance ◽  
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.

Synthesis and characterization of Hg(II) complexes of Me3MCH2SeMe, (M = Si, Ge). Crystal structures of [HgX2(Me3SiCH2SeMe)]2, X = Cl, Br, I

1987 ◽  
Vol 65 (9) ◽  
pp. 2305-2311 ◽  
Author(s):  
Raj K. Chadha ◽  
John E. Drake ◽  
Neil T. McManus ◽  
Anil Mislankar
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Raman Spectroscopy ◽  
Magnetic Resonance ◽  
Crystal Structures ◽  
General Formula ◽  
Synthesis And Characterization ◽  
Nuclear Magnetic

Complexes of the general formula [HgX2(Me3MCH2SeMe)]2, where M = Si, Ge; X = Cl, Br, I, have been prepared and characterized by 1H nuclear magnetic resonance and Raman spectroscopy. Crystal structures of [HgX2(Me3SiCH2SeMe)]2, where X = Cl, Br, and I (1, 2, and 3 respectively), show that they have centrosymmetric dinuclear structures. The crystals of 1 and 2 are monoclinic, while those of 3 are triclinic. For 1: P21/c, a = 14.235(11), b = 6.551(6), c = 14.211(9) Å, β = 117.33(5)°, Z = 2, and R = 0.0560. For 2: P21/c, a = 14.329(6), b = 6.695(2), c = 14.819(4) Å, β = 118.47(2)°, Z = 2, and R = 0.0540. For 3: [Formula: see text], a = 7.651(2), b = 8.387(2), c = 12.321(4) Å, α = 90.07(2), β = 91.80(2), γ = 116.02(2)°, Z = 1, and R = 0.0565. All three complexes show the expected pseudotetrahedral geometry about mercury. The stereochemical differences arise in the arrangement of the bulky trimethylsilylmethyl groups, which in the HgI2 adduct are rotated away from the centre of the molecule but which in the HgCl2 and HgBr2 adducts are turned towards the centre. These are the first dinuclear structures reported of HgBr2 and HgI2 adducts since it was demonstrated 46 years ago by Evans etal. that [HgBr2(AsBu3)]2 was present in [HgBr2(AsBu3)2•HgBr2].

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