质子化的十氟苯甲酮和十氟苯甲酮-五氟化砷加合物。

IF 0.9 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Acta Crystallographica Section C Structural Chemistry Pub Date : 2025-10-01 Epub Date: 2025-09-23 DOI:10.1107/S2053229625007697

Erik Uran, Matic Lozinšek

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引用次数: 0

摘要

十氟苯甲酮[全氟苯甲酮，（C6F5）2CO]与AsF5在无水HF中反应生成质子化盐[二（2,3,4,5,6-五氟苯基）亚甲基]氧化六氟二酸盐，（C6F5）2COH+[AsF6]-，而与AsF5在SO2中反应生成Lewis酸碱加合物十氟苯甲酮-五氟化砷，（C6F5）2CO·AsF5。在这两种化合物中，十氟苯甲酮部分显示出一个细长的C=O键[分别在盐和加合物中为1.274(2)和1.2526 （15）Å]。（C6F5）2COH+[AsF6]-的晶体结构具有短O-H…（C6F5）2CO·AsF5的晶体结构是一种罕见的酮与强刘易斯酸AsF5配位的例子。

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Protonated decafluorobenzophenone and the decafluorobenzophenone-arsenic pentafluoride adduct.

The reaction of decafluorobenzophenone [perfluorobenzophenone, (C₆F₅)₂CO] with AsF₅ in anhydrous HF yields the protonated salt [bis(2,3,4,5,6-pentafluorophenyl)methylidene]oxidanium hexafluoridoarsenate, (C₆F₅)₂COH⁺[AsF₆]^-, whereas its reaction with AsF₅ in SO₂ affords the Lewis acid-base adduct decafluorobenzophenone-arsenic pentafluoride, (C₆F₅)₂CO·AsF₅. In both compounds, the decafluorobenzophenone moiety exhibits an elongated C=O bond [1.274 (2) and 1.2526 (15) Å in the salt and adduct, respectively]. The crystal structure of (C₆F₅)₂COH⁺[AsF₆]^- features a short O-H...F hydrogen bond between the cation and the anion, and the crystal structure of (C₆F₅)₂CO·AsF₅ represents a rare example of a ketone coordinated to the strong Lewis acid AsF₅.

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来源期刊

Acta Crystallographica Section C Structural Chemistry CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

1.60

自引率

12.50%

发文量

148

期刊介绍： Acta Crystallographica Section C: Structural Chemistry is continuing its transition to a journal that publishes exciting science with structural content, in particular, important results relating to the chemical sciences. Section C is the journal of choice for the rapid publication of articles that highlight interesting research facilitated by the determination, calculation or analysis of structures of any type, other than macromolecular structures. Articles that emphasize the science and the outcomes that were enabled by the study are particularly welcomed. Authors are encouraged to include mainstream science in their papers, thereby producing manuscripts that are substantial scientific well-rounded contributions that appeal to a broad community of readers and increase the profile of the authors.