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二甲胂氧

二甲胂氧
IUPAC名
Dimethylarsinous anhydride
二甲基亞砷酸酐
别名 氧化(二甲基砷)
二甲基胂氧化物
二甲基亚砷酸酐
卡可基氧
识别
CAS号 503-80-0  checkY
PubChem 10431
ChemSpider 10002
SMILES
 
  • C[As](C)O[As](C)C
InChI
 
  • 1/C4H12As2O/c1-5(2)7-6(3)4/h1-4H3
InChIKey LOKPKYSOCCPWIZ-UHFFFAOYAL
性质
化学式 C4H12As2O
摩尔质量 255.98 g·mol⁻¹
熔点 -57 °C(216 K)
沸点 150 °C(423 K)
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二甲胂氧化學式為[(CH3)2As]2O為有機化合物。有時二甲胂氧認為是最早製備的較早純度有機金屬化合物,因此有其歷史上的重要性[1][2]

卡戴特的發煙液體是由聯二甲胂和二甲胂氧組成,最早是由法國化學家路易斯·克勞德·卡戴特·德伽西科特於1760年將乙酸鉀三氧化二砷加熱而成。二甲胂氧曾用作变性試劑[3],此化合物有難聞的氣味,而且有毒。

二甲胂氧的甲基若全部用苯基取代,所得的化合物是[Ph2As]2O(Ph = 苯基),已透過X射线晶体学確定其分子結構[4]

參見

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參考資料

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  1. ^ Elschenbroich, C. Organometallics. Weinheim: Wiley-VCH. 2006. ISBN 9783527293902. 
  2. ^ Seyferth, D. Cadet's Fuming Arsenical Liquid and the Cacodyl Compounds of Bunsen. Organometallics. 2001, 20 (8): 1488–1498 [2015-05-15]. doi:10.1021/om0101947. (原始内容 (pdf)存档于2022-03-19). 
  3. ^ Seyferth, Dietmar. Cadet's Fuming Arsenical Liquid and the Cacodyl Compounds of Bunsen. Organometallics (American Chemical Society (ACS)). 2001-04-01, 20 (8): 1488–1498. ISSN 0276-7333. doi:10.1021/om0101947. 
  4. ^ Doerrer, Linda H.; Green, Jennifer C.; Green, Malcolm L. H.; Haiduc, Ionel; Jardine, Christian N.; Pascu, Sofia I.; Silaghi-Dumitrescu, Luminita; Watkin, David J. Group 6 transition metal carbonyl complexes with chalcogen-bridged diarsenic(III) ligands. Journal of the Chemical Society, Dalton Transactions. 2000, (19): 3347–3355. doi:10.1039/b005269h. 
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二甲胂氧
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