Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 6 (June 2004)

na1654 scheme

Acta Cryst. (2004). C60, o402-o404 [doi:10.1107/S010827010400825X]

Monoalkylated 4'-aryl-substituted terpyridines

B. Schulz, J. Bricks, Y.-Q. Li, U. Resch-Genger and G. Reck

Abstract: 1-Methyl-2-[4-phenyl-6-(pyridinium-2-yl)pyridin-2-yl]pyridinium diperchlorate, C₂₂H₁₉N₃²⁺·2ClO₄^-, (I), and 2-[4-(methoxyphenyl)-2,2'-bipyridin-6-yl]-1-methylpyridinium iodide, C₂₃H₂₀N₃O⁺·I^-, (II), both crystallize in the monoclinic space group P2₁/c. In contrast with the monocharged molecule of (II), the doubly charged molecule of (I) contains an additional protonated pyridine ring. One of the two perchlorate counter-anions of (I) interacts with the cation of (I) via an N-HO hydrogen bond. In (II), two molecules related by a centre of symmetry are connected by weak [bold pi] - interactions, forming dimers in the crystal structure.

Formula: C₂₂H₁₉N₃²⁺·2ClO₄^- and C₂₃H₂₀N₃O⁺·I^-

Online 11 May 2004


	Structure factor file (CIF format) (255.4 kbytes) Contains datablock I

	Structure factor file (CIF format) (231.7 kbytes) Contains datablock II

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