Crystallography Open Database

Information card for entry 2016496

2016495 << 2016496 >> 2016497

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Coordinates	2016496.cif
Structure factors	2016496.hkl
Original IUCr paper	HTML

Structure parameters

Common name	4-(phenylazo)anilinium hydrogen 3-nitrophthalate
Chemical name	4-(phenyldiazenyl)anilinium 2-carboxy-6-nitrobenzoate
Formula	C20 H16 N4 O6
Calculated formula	C20 H16 N4 O6
Title of publication	The 1:1 proton-transfer compounds of 4-(phenyldiazenyl)aniline (aniline yellow) with 3-nitrophthalic, 4-nitrophthalic and 5-nitroisophthalic acids
Authors of publication	Smith, Graham; Wermuth, Urs D.; Young, David J.; White, Jonathan M.
Journal of publication	Acta Crystallographica Section C
Year of publication	2008
Journal volume	64
Journal issue	3
Pages of publication	o123 - o127
a	17.873 ± 0.002 Å
b	7.9729 ± 0.001 Å
c	13.3054 ± 0.0016 Å
α	90°
β	98.198 ± 0.002°
γ	90°
Cell volume	1876.6 ± 0.4 Å³
Cell temperature	130 ± 2 K
Ambient diffraction temperature	130 ± 2 K
Number of distinct elements	4
Space group number	14
Hermann-Mauguin space group symbol	P 1 21/c 1
Hall space group symbol	-P 2ybc
Residual factor for all reflections	0.0458
Residual factor for significantly intense reflections	0.0392
Weighted residual factors for significantly intense reflections	0.0966
Weighted residual factors for all reflections included in the refinement	0.1001
Goodness-of-fit parameter for all reflections included in the refinement	1.043
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	Yes

Version history

Revision	Date	Message	Files
180833 (current)	2016-04-02	cif/2/01/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/01/64.	2016496.cif 2016496.hkl
176760	2016-02-20	cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/01.	2016496.cif 2016496.hkl
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2016496.cif 2016496.hkl
88064	2013-08-29	Adding _cod_database_fobs_code data item to all COD CIFs that have Fobs deposited and did not have this data item yet.	2016496.cif 2016496.hkl
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2016496.cif 2016496.hkl
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2016496.cif 2016496.hkl
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).	2016496.cif 2016496.hkl
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.	2016496.cif 2016496.hkl
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.	2016496.cif 2016496.hkl
903	2009-11-23	cif/ Setting svn:keywords property on those CIFs that did not have them.	2016496.cif 2016496.hkl
697	2009-05-05	Adding 1667 more Fobs files, ones that have cell constans differenig not more than 0.1% from the cell constants in the coordinate file. The symmetry operators must also match in both files.	2016496.cif 2016496.hkl
457	2008-10-13	Depositing files from Acta-Cryst-B-2008_02-04, Acta-Cryst-C-2008_03-08, and personal contributions.	2016496.cif