data_2215128 _cod_error_flag retracted _cod_error_source original _cod_error_description ; This file does not describe any real compound and was retracted by the authors. The previously deposited coordinates can be reviewed in older revisions of this file or in the COD database retracted/ subdirectory, http://www.crystallography.net/retracted/. The precise reasons for the retraction and other circumstances are extensively discussed in the Acta Cryst. E editorial: William T. A. Harrison, Jim Simpson and Matthias Weil, Acta Cryst. E 66 (2010) e1--e2 http://journals.iucr.org/e/issues/2010/01/00/me0406/index.html http://journals.iucr.org/e/issues/2010/01/00/me0406/me0406.pdf doi:10.1107/S1600536809051757 (http://dx.doi.org/10.1107/S1600536809051757) Saulius Gra\