Crystallography Open Database

Information card for entry 2202949

2202948 << 2202949 >> 2202950

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Coordinates	2202949.cif
Structure factors	2202949.hkl
Original IUCr paper	HTML

Structure parameters

Formula	C27 H22 Cr O7
Calculated formula	C27 H22 Cr O7
SMILES	[Cr](C#[O])(C#[O])(C#[O])(C#[O])(C#[O])=C(OCC)C1=C(OCC)C=C(C1c1ccccc1)c1ccccc1
Title of publication	Pentacarbonyl[ethoxy(2-ethoxy-4,5-diphenyl-1,3-cyclopentadienyl)carbene]chromium(0)
Authors of publication	Hansen, Lars Kr.
Journal of publication	Acta Crystallographica Section E
Year of publication	2003
Journal volume	59
Journal issue	9
Pages of publication	m703 - m704
a	10.174 ± 0.004 Å
b	12.653 ± 0.003 Å
c	19.559 ± 0.009 Å
α	90°
β	90°
γ	90°
Cell volume	2517.9 ± 1.6 Å³
Cell temperature	298 ± 2 K
Ambient diffraction temperature	298 ± 2 K
Number of distinct elements	4
Space group number	33
Hermann-Mauguin space group symbol	P c 21 n
Hall space group symbol	P -2n -2ac
Residual factor for all reflections	0.0624
Residual factor for significantly intense reflections	0.0382
Weighted residual factors for significantly intense reflections	0.1015
Weighted residual factors for all reflections included in the refinement	0.1132
Goodness-of-fit parameter for all reflections included in the refinement	0.999
Diffraction radiation wavelength	0.71069 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	Yes

Version history

Revision	Date	Message	Files
180949 (current)	2016-04-03	hkl/2/20/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/20/29.	2202949.cif 2202949.hkl
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.	2202949.cif 2202949.hkl
132410	2015-02-25	cod/ (robertas@burundukas) Replaced zero-length value of the tag '_chemical_name_systematic' with '?'. codsql 'select file, chemname from data \ where length(chemname) = 0' -NB \ \| perl -ne 'print $1."\n" if /\b(\d{7})\s$/' \ \| codid2file \ \| xargs perl -0777 -i -pe 's/\b_chemical_name_systematic \K \s? ( \n ; \s? \n ; \| '\'' \s '\'' \s*? ) (?=\n) /" " x8 . "?"/ixmse'	2202949.cif 2202949.hkl
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2202949.cif 2202949.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.	2202949.cif 2202949.hkl
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2202949.cif 2202949.hkl
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2202949.cif 2202949.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).	2202949.cif 2202949.hkl
26025	2011-09-16	hkl/2/ Adding assigned Fobs files for the 1980-2010 IUCr data.	2202949.cif 2202949.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.	2202949.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.	2202949.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/'	2202949.cif
14	2008-01-14	Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files.	2202949.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.	2202949.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)	2202949.cif