Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 7 (July 2004)

bm1564 scheme

Acta Cryst. (2004). C60, o520-o523 [doi:10.1107/S0108270104007541]

Difurazano[3,4-b:3',4'-f]-4,5-diaza-1,8-dioxacyclododecine and an acyclic analogue

B. B. Averkiev, T. V. Timofeeva, A. B. Sheremetev, E. V. Shatunova and M. Yu. Antipin

Abstract: The novel title furazan-containing macrocycle (systematic name: 6,9,14,17-tetraoxa-2,3,5,7,16,18-hexaazatricyclo[13.3.0.0^4,8]octadeca-4,7,15,18-tetraene), C₈H₁₀N₆O₄, (I), is the first macrocycle where the furazan rings are connected via a hydrazine group. In spite of the strain in the 12-membered macrocycle of (I), the geometry of the furazan fragment is the same in (I) and in its acyclic analogue 1,8-bis(5-aminofurazan-4-yloxy)-3,6-dioxaoctane, C₁₀H₁₆N₆O₆, (II). In both compounds, the participation of the furazan rings in intermolecular hydrogen bonding equalizes the N-O bonds within the furazan rings, in contrast with rings which do not participate in such interactions.

Formula: C₈H₁₀N₆O₄ and C₁₀H₁₆N₆O₆

Online 30 June 2004


	Structure factor file (CIF format) (103.3 kbytes) Contains datablock I

	Structure factor file (CIF format) (132.1 kbytes) Contains datablock II

Notes:

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.