Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 1 (January 2004)

Acta Cryst. (2004). C60, m24-m26 [doi:10.1107/S0108270103027264]

Bis[aminoguanidinium(1+)] hexafluorozirconate(IV): redeterminations and normal probability analysis

C. R. Ross II, M. R. Bauer, R. M. Nielson and S. C. Abrahams

Abstract: The crystal structure of bis[aminoguanidinium(1+)] hexafluorozirconate(IV), (CH₇N₄)₂[ZrF₆], originally reported by Bukvetskii, Gerasimenko & Davidovich [Koord. Khim. (1990), 16, 1479-1484], has been redetermined independently using two different samples. Normal probability analysis confirms the reliability of all refined parameter standard uncertainties in the new determinations, whereas systematic error detectable in the earlier work leads to a maximum difference of 0.069 (6) Å in atomic positions between the previously reported and present values of an F-atom y coordinate. Radiation-induced structural damage in aminoguanidinium polyfluorozirconates may result from minor displacements of H atoms in weak N-HF bonds to new potential minima and subsequent anionic realignment.

Formula: (CH₇N₄)₂[ZrF₆]

Online 13 December 2003


	Structure factor file (CIF format) (82.5 kbytes) Contains datablock I

	Structure factor file (CIF format) (82.8 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.