Abstract
The crystal structure of N,N′-di(2-carboxyethyl)-4,4′-dipyridylium diperchlorate, C16H18Cl2N2O12, is determined using X-ray diffraction analysis at 293 K. The crystals are orthorhombic, a = 20.084(4) Å, b = 8.687(2) Å, c = 11.725(2) Å, space group Pna21, and Z = 4; 1688 reflections measured; and R = 0.056 and R w = 0.059 for 1244 reflections with I > 3σ(I). It is found that, in the absence of charge transfer or short intramolecular O⋯N contacts, the nucleus of the dication adopts a twist conformation (the angle of rotation between the planes of the pyridine rings is equal to 23°).
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Translated from Kristallografiya, Vol. 50, No. 3, 2005, pp. 460–463.
Original Russian Text Copyright © 2005 by A. Polishchuk, I. Polishchuk, Klimusheva, Gridyakina, Bordyug, Grineva.
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Polishchuk, A.P., Polishchuk, I.Y., Klimusheva, G.V. et al. Electronic nature of substituents and the structure of 4,4′-dipyridylium dications: Crystal structure of N, N′-di(2-carboxyethyl)-4,4′-dipyridylium diperchlorate. Crystallogr. Rep. 50, 415–418 (2005). https://doi.org/10.1134/1.1927601
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DOI: https://doi.org/10.1134/1.1927601