2002
DOI: 10.1002/1521-3757(20020104)114:1<119::aid-ange119>3.0.co;2-u
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Protonierte Schwefelsäure: Herstellung von Trihydroxyoxosulfonium-hexafluoroantimonat H3SO4+SbF6−

Abstract: Professor Karl Otto Christe zum 65. Geburtstag gewidmet 100-proz. Schwefels‰ure ist eine der st‰rksten S‰uren und bildet definitionsgem‰˚die Grenze zu den Supers‰uren. Von den bei der Autoprotolyse von Schwefels‰ure gem‰˚Gleichung (1) entstehenden Ionen ist nur die Struktur des Hydrogensulfat-Ions in Salzen als Festkˆrper und die der Schwefels‰ure selbst bekannt. [1, 2] 2 H 2 SO 4 À3 H 3 SO 4 HSO 4 À (1) Die Existenz des Trihydroxyoxosulfonium-Ions H 3 SO 4 konnte z. B. durch Kryoskopie, Leitf‰higkeitsmessunge… Show more

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Cited by 17 publications
(7 citation statements)
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“…In the [H 2 SO 3 F] + [SbF 6 ] − salt, one SO bond with 139.5(3) pm and two SO bonds with lengths of 147.5(3) and 148.5(3) pm are observed. These lengths are in the region typical for SO single and double bonds, respectively, and comparable to the corresponding SO bonds in the [D 3 SO 4 ] + cation 8. The SF bond length of 150.9(2) pm is in the typical region of SF bonds.…”
Section: Resultssupporting
confidence: 53%
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“…In the [H 2 SO 3 F] + [SbF 6 ] − salt, one SO bond with 139.5(3) pm and two SO bonds with lengths of 147.5(3) and 148.5(3) pm are observed. These lengths are in the region typical for SO single and double bonds, respectively, and comparable to the corresponding SO bonds in the [D 3 SO 4 ] + cation 8. The SF bond length of 150.9(2) pm is in the typical region of SF bonds.…”
Section: Resultssupporting
confidence: 53%
“…However, they are not meaningful for the structure of the salt and therefore do not significantly support the localization of the oxygen atoms. However, the oxygen atoms have O⋅⋅⋅F contacts to the anions of 244.8 and 248.7 pm, which are in the range of short hydrogen bonds (O⋅⋅⋅H⋅⋅⋅F) like those found, for example, in [D 3 SO 4 ] + [SbF 6 ] − and [H 2 SO 2 F] + [SbF 6 ] − 8. 28 On the other hand, the shortest F⋅⋅⋅F distance between anion and cation is 295.0 pm.…”
Section: Resultsmentioning
confidence: 88%
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“…The symmetrically independent anions have Sb−F bond lengths of 1.8761(13) and 1.8723(13) Å, respectively. The bond lengths are not significantly different and are comparable to the Sb−F bonds in [SbF 6 ] − ions …”
Section: Resultsmentioning
confidence: 70%
“…Dagegen spricht aber, dass in der Umgebung der Sauerstoffatome O⋅⋅⋅F‐Kontakte zum Anion mit Atom‐Atom‐Abständen von 253(1) und 258(1) pm zu finden sind, die im Bereich kurzer Wasserstoffbrücken liegen, wie sie z. B. auch bei [H 3 SO 4 ] + [SbF 6 ] − ‐Salzen beobachtet werden 10. Der kleinste F⋅⋅⋅F‐Abstand zwischen Kation und Anion beträgt dagegen 281(1) pm.…”
Section: Schwingungsfrequenzen [Cm−1] Des Feststoffs[a]unclassified