parameters was carried out by the method of least squares with anisotropic temperature factors. After the final cycle including all observed F(hkl) the factor R had a value 0.10. X-ray crystallographic investigation showed, that the previously unobserved structure of a dicubane is in fact present. The cubes are distorted. All the Zn-0-Zn angles are smaller than 90° (81 "-86 ") and all the 0-Zn-0 angles are greater than 90 ' (93 "-98 "). The four atoms centered on the cube faces lie in one plane.
Herrn Professor Eugen Muller zum 65. Geburtstag gewidmetBei der HC1-Kondensation von 4-Acetyl-2,6-di-tert.-butylphenol in wasserfreiem Athanol bildet sich bei Raumtemperatur in geringer Ausbeute das bisher unbekannte Triphenol 1,3,5-Tris(3,5-di-tert.
Das bei der Umsetzung des Phenols (I) mit HCl in wasserfreiem Äthanol bei Raumtemperatur entstehende Triphenol (II) gibt bei der Dehydrierung mit PbO2 in Benzol oder Toluol das Mono‐(III) und Triradikal (IV).
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