1997
DOI: 10.1002/zaac.19976230178
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Preparation and Structures of Salts with the Anions of IF2, ClF4 IF4, TeF7, and AsF4

Abstract: Single crystal structures are presented for the IF2-, further advantage that cation-anion interactions are weak, ClF4-, IF4-, TeF7-, and AsF4-fluoroanions. The 1,1,3,3,5,5 which results in fairly ideal structures of the anions. hexamethylpiperidinium (pip') ion was used as cation in or-PiptBrF2-is too unstable to be obtained in single crystal der to obtain good crystallinity and to avoid twinning and form, and pip'BrOF4-as well as NO'BrOF4-show disordisorder which are notorious with the tetramethylammonium d… Show more

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Cited by 51 publications
(66 citation statements)
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References 54 publications
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“…Die beiden freien Elektronenpaare am Iodatom von 1 verhindern also nicht dessen intermolekulare Akzeptorwirkung zu Fluoratomen. Ursa È chlich fu È r die Assoziation der Moleku È le ist das Zusammenspiel der positiven Ladung am Iodatom mit der hohen negativen Ladung der hypervalent gebundenen F-Atome im Nachbarmoleku È l (s. hierzu die Ergebnisse der ab initio Rechnungen und die strukturelle Besta È tigung der Reaktivita È t von IF 3 gegenu È ber F ± ) [17]. Prinzipiell la È ût sich aus den Strukturuntersuchungen ein fluoridotropes Verhalten (Fluorid-Donor-und Fluorid-Akzeptoreigenschaft) von 1 ableiten, das wir aktuell untersuchen.…”
Section: Ergebnisse Und Diskussionunclassified
“…Die beiden freien Elektronenpaare am Iodatom von 1 verhindern also nicht dessen intermolekulare Akzeptorwirkung zu Fluoratomen. Ursa È chlich fu È r die Assoziation der Moleku È le ist das Zusammenspiel der positiven Ladung am Iodatom mit der hohen negativen Ladung der hypervalent gebundenen F-Atome im Nachbarmoleku È l (s. hierzu die Ergebnisse der ab initio Rechnungen und die strukturelle Besta È tigung der Reaktivita È t von IF 3 gegenu È ber F ± ) [17]. Prinzipiell la È ût sich aus den Strukturuntersuchungen ein fluoridotropes Verhalten (Fluorid-Donor-und Fluorid-Akzeptoreigenschaft) von 1 ableiten, das wir aktuell untersuchen.…”
Section: Ergebnisse Und Diskussionunclassified
“…To evaluate the reliability of our computational methods, the well know IF 4 " geometry 23 and spectra 2 were calculated first. As can be seen from Tables 2 and 4 The symmetry force constants and potential energy distributions (PED) were calculated for IF 5 2 " and XeF 5 " using the scaled HF/ECP/DZP frequencies (see Table 5).…”
Section: Characterization Of Csmentioning
confidence: 99%
“…Vibrational spectra of MAsF 4 The vibrational spectrum of (CH 3 ) 4 NAsF 4 in the 200-4000 cm -1 region was compared with those of (CH 3 ) 4 NF (ref. 24 25,26 ) and (CH 3 ) 4 NPF 4 (ref.…”
Section: Vibrational Spectra Of Fluoroarsenates(iii) Masf 4 (M = Namentioning
confidence: 99%
“…CsAsF 4 and RbAsF 4 were prepared from CsF and RbF in liquid AsF 3 at 353 K in a tube reactor made of the copolymer of tetrafluoroethylene with perfluoroalkyl vinyl ether (PFA) 2,3 . Syntheses (CH 3 ) 4 NAsF 4 and NaAsF 4 were synthesised by the original procedure for the preparation of alkali metal fluoroarsenates(III), by dissolving (CH 3 ) 4 NF and NaF, respectively, in liquid AsF 3 at 353 K in a PFA tube reactor 2,3 .…”
mentioning
confidence: 99%