Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 9 (September 2002)

Acta Cryst. (2002). C58, o565-o567 [doi:10.1107/S0108270102013458]

1,1'-Di(hydrazinocarbonylmethyl)-2,2'-biimidazole monohydrate and 1,1'-di[2-(hydrazinocarbonyl)ethyl]-2,2'-biimidazole

W. M. Barnett, R. G. Baughman, P. M. Secondo and C. J. Hermansen

Abstract: The crystal structures of the title compounds, alternatively called 2,2'-(2,2'-biimidazole-1,1'-diyl)diacetohydrazide monohydrate, C₁₀H₁₄N₈O₂·H₂O, (I), and 3,3'-(2,2'-biimidazole-1,1'-diyl)dipropionohydrazide, C₁₂H₁₈N₈O₂, (II), respectively, have been determined. The molecules consist of half-molecule asymmetric units related by a twofold rotation in (I) and by a center of inversion in (II). The imidazole rings of both molecules crystallize in a nearly coplanar fashion [dihedral angles of 5.91 (3) and 0.0 (1)° for (I) and (II), respectively]. Both planar hydrazinocarbonylalkyl substituents are essentially planar and assume the E orientation.

Formula: C₁₀H₁₄N₈O₂·H₂O and C₁₂H₁₈N₈O₂

Online 21 August 2002


	Structure factor file (CIF format) (31.1 kbytes) Contains datablock I

	Structure factor file (CIF format) (63.3 kbytes) Contains datablock II

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