Crystallography Open Database

Information card for entry 2100186

Preview

Coordinates	2100186.cif
Original IUCr paper	HTML
External links	ChemSpider

Structure parameters

Common name	phenobarbital
Chemical name	5-ethyl-5-phenylbarbituric acid
Formula	C144 H144 N24 O36
Calculated formula	C12 H12 N2 O3
SMILES	N1C(=O)NC(=O)C(C1=O)(c1ccccc1)CC
Title of publication	Structure determination of forms I and II of phenobarbital from X-ray powder diffraction
Authors of publication	Platteau, Cyril; Lefebvre, Jacques; Hemon, Stephanie; Baehtz, Carsten; Danede, Florence; Prevost, Dominique
Journal of publication	Acta Crystallographica Section B
Year of publication	2005
Journal volume	61
Journal issue	1
Pages of publication	80 - 88
a	10.7313 ± 0.0003 Å
b	23.5112 ± 0.0007 Å
c	6.78309 ± 0.00018 Å
α	90.9687 ± 0.0009°
β	94.4757 ± 0.0009°
γ	88.1533 ± 0.0012°
Cell volume	1705.13 ± 0.08 Å³
Cell temperature	293 K
Ambient diffraction temperature	293 K
Number of distinct elements	4
Space group number	2
Hermann-Mauguin space group symbol	P -1
Hall space group symbol	-P 1
Diffraction radiation wavelength	1.5406 Å
Diffraction radiation type	CuKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
201972 (current)	2017-10-13	cif/ Marking COD entries in range 2/10 that are known to be related to ChemSpider entries using the _cod_related_entry data loop.	2100186.cif
176768	2016-02-20	cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/10.	2100186.cif
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2100186.cif
77584	2013-03-28	cod/ (inesa@sabalas) Correcting uppercase author names in the rest of the COD CIFs.	2100186.cif
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2100186.cif
31987	2012-01-04	cif/ Correcting author names in 44 entries (to avoid validation errors), mostly just case conversions but some incorrect bibliographies were also fixed.	2100186.cif
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2100186.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).	2100186.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.	2100186.cif
5310	2011-01-02	cif/ Running cif_fix_enum with the core CIF dictionary on COD ranges 2, 8 and 9. Range 9 remained unchanged, and in ranges 2 and 8 there were 17309 modified files, most changes were fixes enumerator case.	2100186.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.	2100186.cif
19	2008-01-26	Changing all end-of-line codes from DOS style to UNIX style in all COD CIF files, for more convenient processing: In the cod/cif/ directory: ff \*.cif \| xargs perl -i -pe 's/\r\n/\n/'	2100186.cif
14	2008-01-14	Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files.	2100186.cif
13	2008-01-13	Setting the svn:keywords property to "Author Date Revision URL Id" for all CIF files in the cod/cif directory.	2100186.cif
1	2007-11-30	Adding all .cif files from the COD, downloaded in a Cod.zip file on 2007.02.07 (and the same Cod.zip is downloadable today, on 2007.11.29)	2100186.cif