Synthesis and Structure of Hexa(Diethoxyphosphoryloxy)calix[6]arene

Leonid N. Markovsky Institute of Organic Chemistry of the National Ukrainian Academy of Sciences, Murmanskaya str., 5, Kiev-94, 253660, Ukraine; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Vitaly I. Kalchenko Institute of Organic Chemistry of the National Ukrainian Academy of Sciences, Murmanskaya str., 5, Kiev-94, 253660, Ukraine; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Myroslav A. Vysotskya Institute of Organic Chemistry of the National Ukrainian Academy of Sciences, Murmanskaya str., 5, Kiev-94, 253660, Ukraine; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Vladimir V. Pirozhenko Institute of Organic Chemistry of the National Ukrainian Academy of Sciences, Murmanskaya str., 5, Kiev-94, 253660, Ukraine; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Yurij A. Simonov Institute of Applied Physics of the Moldova Academy of Sciences, Kishinev, 277028, Moldova; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Alexander A. Dvorkin Institute of Applied Physics of the Moldova Academy of Sciences, Kishinev, 277028, Moldova; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Alexander V. Iatsenko Institute of Applied Physics of the Moldova Academy of Sciences, Kishinev, 277028, Moldova; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

Janusz Lipkowski Institute of Applied Physics of the Moldova Academy of Sciences, Kishinev, 277028, Moldova; Institute of Physical Chemistry of the Polish Academy of Sciences, 01224, Warsaw, Poland

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Abstract

Hexapodand 1, which contains six phosphoryl groups at the lower rim of the macrocycle, was synthesized by the reaction of calix[6]arene with diethylchlorophosphate and sodium hydride. The structure is confirmed by X-ray studies: C₆₆H₉₀O₂₄P₆, Pbca, a = 14.867 (4), b = 18.577 (4), c = 26.510(6), D_c = 1.265g/cm³, Z = 4, and R = 0.063 for the 4600 observed reflections. The molecule 1 exists in a centrosymmetrical flattened 1,2,3-alternate conformation, in which diametrically opposed benzene rings are parallel. Four phosphoryl groups are oriented away from the cycle, two other groups are self-included in the macrocycle cavity.

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Synthesis and Structure of Hexa(Diethoxyphosphoryloxy)calix[6]arene

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Synthesis and Structure of Hexa(Diethoxyphosphoryloxy)calix[6]arene

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