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Synthesis and Characterisation of New Arsonium Salts and Crystal Structures of Trimethylarsonium Undecafluorodiarsenate (CH3)3AsH+As2F11− and Trimethylarsonium Hexafluoroantimonate (CH3)3AsH+SbF6−

✍ Scribed by Rolf Minkwitz; Claudia Hirsch; Thorsten Berends

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 291 KB
Volume: 1999
Category: Article
ISSN: 1434-1948
DOI: 10.1002/(sici)1099-0682(199912)1999:12<2249::aid-ejic2249>3.0.co;2-1

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✦ Synopsis

The reaction of trimethylarsane in the superacidic systems As 2 F 11 -crystallizes in the monoclinic space group P2 1 /n with four formula units per unit cell with the dimensions a = hydrogen/fluoride antimony pentafluoride and hydrogen fluoride/arsenic pentafluoride leads to trimethylarsonium 7.362(1), b = 12.589(1), c = 13.598(1) A ˚and β = 95.37(1)°.

(CH 3 ) 3 AsH + SbF 6 -crystallizes in the monoclinic space group fluorometallates. These salts are stable up to 60 °C and 5 °C, respectively. Structures were successfully elucidated in the P2 1 /m with four formula units per unit cell with the dimensions a = 8.313(1), b = 8.855(1), c = 13.285(1) A ˚and cases of trimethylarsonium undecafluorodiarsenate and trimethylarsonium hexafluoroantimonate.

(CH 3

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