Crystallography Open Database

Information card for entry 2207732

2207731 << 2207732 >> 2207733

Preview

Coordinates	2207732.cif
Original IUCr paper	HTML
External links	ChemSpider

Structure parameters

Chemical name	Bis(2,6-dimethylpyridinium) dichromate
Formula	C14 H20 Cr2 N2 O7
Calculated formula	C14 H20 Cr2 N2 O7
SMILES	[Cr]([O-])(=O)(=O)O[Cr](=O)(=O)[O-].[nH+]1c(C)cccc1C.[nH+]1c(C)cccc1C
Title of publication	Bis(2,6-dimethylpyridinium) dichromate
Authors of publication	Zhi-Min Jin; Xin-Ju Ma; Yong Zhang; Bing Tu; Mao-Lin Hu
Journal of publication	Acta Crystallographica Section E
Year of publication	2006
Journal volume	62
Journal issue	1
Pages of publication	m106 - m108
a	13.6 ± 0.003 Å
b	8.3478 ± 0.0017 Å
c	17.032 ± 0.003 Å
α	90°
β	113.1 ± 0.03°
γ	90°
Cell volume	1778.6 ± 0.7 Å³
Cell temperature	293 ± 2 K
Ambient diffraction temperature	293 ± 2 K
Number of distinct elements	5
Space group number	5
Hermann-Mauguin space group symbol	C 1 2 1
Hall space group symbol	C 2y
Residual factor for all reflections	0.0473
Residual factor for significantly intense reflections	0.0416
Weighted residual factors for significantly intense reflections	0.0979
Weighted residual factors for all reflections included in the refinement	0.1003
Goodness-of-fit parameter for all reflections included in the refinement	1.104
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
201973 (current)	2017-10-13	cif/2/ Marking COD entries in range 2/20 that are known to be related to ChemSpider entries using the _cod_related_entry data loop.	2207732.cif
176774	2016-02-20	cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/20.	2207732.cif
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2207732.cif
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2207732.cif
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2207732.cif
26029	2011-09-17	cif/2/ Reverting changes of revision 25271: ( cd cif/2/; svn merge -r25271:25270 . ) The problem was that the reprocessed files from IUCr, although were more complete, "resurrected" data errors that were corrected in the previous recisions. The additional data that have been extracted during the reprocessing will have to be merged without overwriting the existing values in COD files, except some explicit and controlled cases (such as publication titles and chemical names).	2207732.cif
25271	2011-09-10	cif/2/ Adding reporocessed IUCr CIFs for the years 1980-2010. The CIFs now contain more complete bibliography, substance names, correctly unfolded text fields (using the CIF line unfolding protocol), explicitely set cell angles, and _cod_data_source_block fields.	2207732.cif
966	2010-01-30	cif/ Adding _cod_database_code tags to all COD entries. Adding tag description to the cif_cod.dic dictionary so that COD entries can be validated.	2207732.cif
853	2009-11-16	cif/ Reconstructing spacegroup designators from the symmetry operators were possible. The comands used can be found in the log file reformat-spacegroups-2009.11.14.log committed with the current revision. Only lines that contained spacegroup designators were changed, and all files pass vcif test after the conversion.	2207732.cif
326	2008-04-03	Adding all Acta Cryst. B, C, and E missing retrospective CIF files up to 2008 February, generated from the files that were automatically downloaded from the IUCr site.	2207732.cif