Abstract
X-ray diffraction structural study of a novel aromatic 10π-electron system of 1,3,4,6-tetraphenyl-imidazolio[4,5-d]-imidazolium bis(phenylenedioxytetrachlorophosphate) is carried out. The crystals are monoclinic; a = 8.483(2) Å, b = 23.986(4) Å, c = 10.727(2) Å; β = 106.84(2)°; V = 2089.1(7) Å3, space group P21/n. The compound crystallizes as a salt containing two phenylenedioxytetrachlorophoshate anions per one dication of 1,3,4,6-tetraphenylimidazolio[4,5-d]imidazolium. The cation occupies a special position on the inversion center. There are short C-H...X (X = O, Cl) contacts and π-π-interactions between aromatic fragments in the crystal and their combined effect results in the development of a layered structure.
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Original Russian Text Copyright © 2007 by E. V. Mironova, A. T. Gubaidullin, I. A. Litvinov, V. F. Mironov, A. A. Shtyrlina, V. I. Kovalenko, and R. R. Shagidullin
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Translated from Zhurnal Strukturnoi Khimii, Vol. 48, No. 3, pp. 569–574, May–June, 2007.
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Mironova, E.V., Gubaidullin, A.T., Litvinov, I.A. et al. Crystal and molecular structure of 1,3,4,6-etraphenylimidazolio[4,5-d]-imidazolium bis(phenylenedioxytetrachlorophosphate). J Struct Chem 48, 528–533 (2007). https://doi.org/10.1007/s10947-007-0079-8
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DOI: https://doi.org/10.1007/s10947-007-0079-8