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  • Hexa(4-methoxyphenyl)cyclohexaarsane  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 75-78 
    ISSN: 0044-2313
    Keywords: Cyclopolyarsane ; Hexa(4-methoxyphenyl)cyclohexaarsane ; Cyclohexaarsane ; Crystal Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Structure of Hexa(4-methoxyphenyl)cyclohexaarsaneHexa(4-methoxyphenyl)cyclohexaarsane 4 was prepared by the reaction of 4-methoxyphenylarsonic acid with hypophosphorous acid. The structure of 4 was determined by X-ray crystal structure analysis. The crystals of 4 are monoclinic, a = 6.258(6) Å, b = 21.687(19) Å, c = 15.583(14) Å, β = 100.11(7)°, spacegroup P21/c. 4 consists of a six-membered ring in chair conformation and centrical symmetry. The mean bond lengths and angles are As—As = 2.46 Å, As—C = 1.96 Å, As—As—As = 91°, As—As—C = 97°. NMR investigations proved the presence of several species in CDCl3 and C6D6 solutions, respectively.
    Notes: Hexa(4-methoxyphenyl)cyclohexaarsan 4 wurde durch Umsetzung von 4-Methoxyphenylarsonsäure mit Unterphosphoriger Säure erhalten. Die Struktur von 4 wurde durch Kristallstrukturanalyse bestimmt. Kristalle von 4 sind monoklin, a = 6.258 (6) Å, b = 21.687(19) Å, c = 15.583(14) Å, β = 100.11(7)°, Raumgruppe P21/c. 4 besteht aus einem zentrosymmetrischen Sechsring in Sesselkonformation. Die Bindungslängen und -winkel betragen im Mittel As—As = 2.46 Å, As—C = 1.96 Å, As—As—As = 91°, As—As—C = 97°. In CDCl3- bzw. C6D6-Lösungen von 4 konnten mittels NMR mehrere Spezies nachgewiesen werden.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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