Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 10 (October 2007)

metal-organic compounds

gd3124 scheme

Acta Cryst. (2007). C63, m436-m439 [ doi:10.1107/S0108270107039686 ]

2,6-Bis(azaindole)pyridine: reactivity with iron(III) and copper(II) salts

S. N. Collins, S. Taylor, J. A. Krause and W. B. Connick

Abstract: 1-[6-(1H-Pyrrolo[2,3-b]pyridin-1-yl)pyridin-2-yl]-1H-pyrrolo[2,3-b]pyridin-7-ium tetrachloridoferrate(III), (C₁₉H₁₄N₅)[FeCl₄], (II), and [2,6-bis(1H-pyrrolo[2,3-b]pyridin-1-yl- [kappa] N⁷)pyridine- [kappa] N]bis(nitrato- [kappa] O)copper(II), [Cu(NO₃)₂(C₁₉H₁₃N₅)], (III), were prepared by self-assembly from FeCl₃·6H₂O or Cu(NO₃)₂·3H₂O and 2,6-bis(1H-pyrrolo[2,3-b]pyridin-1-yl)pyridine [commonly called 2,6-bis(azaindole)pyridine, bap], C₁₉H₁₃N₅, (I). Compound (I) crystallizes with Z' = 2 in the P $\overline{1}$ space group, with both independent molecules adopting a trans-trans conformation. Compound (II) is a salt complex with weak C-HCl interactions giving rise to a zigzag network with [pi] -stacking down the a axis. Complex (III) lies across a twofold rotation axis in the C2/c space group. The Cu^II center in (III) has an N₃O₂ trigonal-bipyramidal environment. The nitrate ligand coordinates in a monodentate fashion, while the bap ligand adopts a twisted tridentate binding mode. C-HO interactions give rise to a ribbon motif.

Formula: C₁₉H₁₃N₅, (C₁₉H₁₄N₅)[FeCl₄] and [Cu(NO₃)₂(C₁₉H₁₃N₅)]


	Structure factor file (CIF format) (231.2 kbytes) [ doi:10.1107/S0108270107039686/gd3124Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (179.1 kbytes) [ doi:10.1107/S0108270107039686/gd3124IIsup3.hkl ] Contains datablock II

	Structure factor file (CIF format) (114.1 kbytes) [ doi:10.1107/S0108270107039686/gd3124IIIsup4.hkl ] Contains datablock III

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