New Alkali Metal and Tetramethylammonium Tetrafluoroarsenates(III), Their Vibrational Spectra and Crystal Structure of Cesium Tetrafluoroarsenate(III)

Klampfer, Peter; Benkič, Primož; Lesar, Antonija; Volavšek, B.; Ponikvar, Maja; Jesih, Adolf

doi:10.1135/cccc20040339

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…Vibrational bands in the Raman spectrum of neutral AsF 3 (vapour phase) appear at 739(n 1 ), 337(n 2 ), 699(n 3 ) and 274(n 4 ) cm À1 [12], while AsF 3 in the liquid phase has the following vibrations: n 1 707, n 2 341, n 3 644 and n 4 274 cm À1 [13]. The vibrations of the regular AsF 4 À anion in CsAsF 4 are at 659, 592, 447, 397, 377, 354, 325 and 311 cm À1 [14] while the vibrations of the cation AsF 2 + in AsF 3 .SbF 5 are at 738(n 1 ) and 728 cm À1 and, possibly, at 700(n 3 ) cm À1 [15]. In the compound, F 3 As-AuSbF 6 , bands at 771 and 755 cm À1 were assigned to the nAsF 3 [5].…”

Section: Raman Spectroscopymentioning

confidence: 95%

Ca(AsF3)(AsF6)2: the first alkaline earth metal cation coordinated to AsF3

Tramšek

Žemva

2004

Journal of Fluorine Chemistry

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Section: Raman Spectroscopymentioning

confidence: 95%

Ca(AsF3)(AsF6)2: the first alkaline earth metal cation coordinated to AsF3

Tramšek

Žemva

2004

Journal of Fluorine Chemistry

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Electron paramagnetic resonance of γ-irradiated [(CH3)4N]2ZnF4 and [(CH3)4N]2CdF4 single crystals and vibrational spectra of their unirradiated forms

Bozkurt

Kartal

Köksal

et al. 2008

Radiation Physics and Chemistry

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Unusual neutral ligand coordination to arsenic and antimony trifluoride

et al. 2011

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The preparations and spectroscopic characterisation of the hydrolytically unstable As(III) complexes, [AsF(3)(OPR(3))(2)] (R = Me or Ph) and [AsF(3){Me(2)P(O)CH(2)P(O)Me(2)}] are described and represent the first examples of complexes of AsF(3) with neutral ligands. The crystal structure of [AsF(3){Me(2)P(O)CH(2)P(O)Me(2)}] contains dimers with bridging diphosphine dioxide, but there are also long contacts between the dimers to neighbouring phosphine oxide groups, completing a very distorted six-coordination at arsenic and producing a weakly associated polymer structure. The reaction of AsF(3) with OAsPh(3) affords Ph(3)AsF(2), and no arsine oxide complex was formed. Reaction of SbF(3) with OER(3) (R = Me or Ph, E = P or As), Me(2)P(O)CH(2)P(O)Me(2) and Ph(2)P(O)(CH(2))(n)P(O)Ph(2) (n = 1 or 2) in MeOH produces [SbF(3)(OER(3))(2)], [SbF(3){Me(2)P(O)CH(2)P(O)Me(2)}] and [SbF(3){Ph(2)P(O)(CH(2))(n)P(O)Ph(2)}] respectively. The X-ray structures reveal that the complexes contain square pyramidal SbF(3)O(2) cores with apical F and cis disposed pnictogen oxides. However, whilst [SbF(3)(OER(3))(2)] (R = Ph: E = P or As; R = Me: E = As) and [SbF(3){Ph(2)P(O)CH(2)P(O)Ph(2)}] are monomeric, [SbF(3){Me(2)P(O)CH(2)P(O)Me(2)}] is a dimer with bridging diphosphine dioxides producing a twelve-membered ring, and [SbF(3){Ph(2)P(O)(CH(2))(2)P(O)Ph(2)}] is a chain polymer with diphosphine dioxide bridges. In the OAsR(3) reactions with SbF(3), R(3)AsF(2) are also formed. Notably the Sb-O(P) bonds are shorter than As-O(P), despite the covalent radii (As < Sb), consistent with very weak coordination of the AsF(3). IR and multinuclear ((1)H, (19)F and (31)P) NMR data are reported and discussed. BiF(3) does not react with pnictogen oxide ligands under similar conditions and halide exchange of bismuth chloro complexes with Me(3)SnF gave BiF(3).

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New Alkali Metal and Tetramethylammonium Tetrafluoroarsenates(III), Their Vibrational Spectra and Crystal Structure of Cesium Tetrafluoroarsenate(III)

Abstract: The title compounds were synthesised by the reaction of alkali metal and tetramethylammonium fluorides with liquid AsF 3 . Crystal structure of CsAsF 4 was determined. Raman and infrared spectra of the title compounds were analysed.

Cited by 3 publications

References 26 publications

Ca(AsF3)(AsF6)2: the first alkaline earth metal cation coordinated to AsF3

Ca(AsF3)(AsF6)2: the first alkaline earth metal cation coordinated to AsF3

Electron paramagnetic resonance of γ-irradiated [(CH3)4N]2ZnF4 and [(CH3)4N]2CdF4 single crystals and vibrational spectra of their unirradiated forms

Unusual neutral ligand coordination to arsenic and antimony trifluoride

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