Crystallography Open Database

Information card for entry 2204709

2204708 << 2204709 >> 2204710

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Coordinates	2204709.cif
Original IUCr paper	HTML
External links	ChemSpider

Structure parameters

Formula	C11 H11 N O2
Calculated formula	C11 H11 N O2
SMILES	O=c1n(c2c(c(O)c1)cccc2)CC
Title of publication	1-Ethyl-4-hydroxyquinolin-2(1<i>H</i>)-one
Authors of publication	Baumer, Vyacheslav N.; Shishkin, Oleg V.; Ukrainets, Igor V.; Sidorenko, Lyudmila V.; Samer A. El Kayal
Journal of publication	Acta Crystallographica Section E
Year of publication	2004
Journal volume	60
Journal issue	12
Pages of publication	o2356 - o2358
a	7.8474 ± 0.0012 Å
b	8.466 ± 0.0014 Å
c	14.033 ± 0.003 Å
α	90°
β	90°
γ	90°
Cell volume	932.3 ± 0.3 Å³
Cell temperature	293 ± 2 K
Number of distinct elements	4
Space group number	19
Hermann-Mauguin space group symbol	P 21 21 21
Hall space group symbol	P 2ac 2ab
Residual factor for significantly intense reflections	0.036
Weighted residual factors for all reflections included in the refinement	0.103
Goodness-of-fit parameter for all reflections included in the refinement	0.97
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.	2204709.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.	2204709.cif
129439	2015-01-07	cod/ (robertas@burundukas) Correcting values of _exptl_crystal_density_meas and _exptl_crystal_density_method data items: codsql "select codid from validation where message like '%\\'_exptl_crystal_density_meas\\' value \"not measured\" is %'" -NB \ \| codid2file \ \| xargs perl -i -pe "s/_exptl_crystal_density_meas\\s+'not +measured'/_exptl_crystal_density_meas ?/i; \ s/_exptl_crystal_density_method\\s+('not +measured'\|\\?\|none)/_exptl_crystal_density_method ./i"	2204709.cif
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2204709.cif
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2204709.cif
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2204709.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).	2204709.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.	2204709.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.	2204709.cif
321	2008-03-30	Changing the COD CIF files header (comments) in all files that were recently deposited from the IUCr autodownloaded sources to the text agreed with IUCr.	2204709.cif
101	2008-02-08	Renaming the '_[local]_cod_original_file' tag into '_[local]_cod_data_source_file'. This reflects better the actual usage of the mentioned files -- they were used for data extraction, but not as originals for verbatim copying.	2204709.cif
87	2008-02-04	Adding CIF files from ActaE2004-Issues-4-12/ (1465 files).	2204709.cif