Crystallography Open Database

Information card for entry 2205487

2205486 << 2205487 >> 2205488

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Coordinates	2205487.cif
Structure factors	2205487.hkl
Original IUCr paper	HTML

Structure parameters

Chemical name	Tricarbonyl[η^6^-(S,S)-1-[2-methoxy-3,6-bis(trimethylsilyl)phenyl]-N,N- dimethylethylamine]chromium(0)
Formula	C20 H33 Cr N O4 Si2
Calculated formula	C20 H33 Cr N O4 Si2
SMILES	[Cr]12345(C#[O])(C#[O])([c]6([C@H](C)N(C)C)[c]1([cH]3[cH]5[c]2([Si](C)(C)C)[c]46OC)[Si](C)(C)C)C#[O]
Title of publication	Tricarbonyl{η^6^-(<i>S,S</i>)-1-[2-methoxy-3,6-bis(trimethylsilyl)phenyl]-<i>N,N</i>-dimethylethylamine}chromium(0)
Authors of publication	Braun, Wolfgang; Calmuschi, Beatrice; Totev, Daniel; Salzer, Albrecht
Journal of publication	Acta Crystallographica Section E
Year of publication	2005
Journal volume	61
Journal issue	4
Pages of publication	m647 - m648
a	7.1361 ± 0.0012 Å
b	17.251 ± 0.003 Å
c	19.541 ± 0.003 Å
α	90°
β	90°
γ	90°
Cell volume	2405.6 ± 0.7 Å³
Cell temperature	110 ± 2 K
Ambient diffraction temperature	110 ± 2 K
Number of distinct elements	6
Space group number	19
Hermann-Mauguin space group symbol	P 21 21 21
Hall space group symbol	P 2ac 2ab
Residual factor for all reflections	0.0419
Residual factor for significantly intense reflections	0.0328
Weighted residual factors for significantly intense reflections	0.0693
Weighted residual factors for all reflections included in the refinement	0.0843
Goodness-of-fit parameter for all reflections included in the refinement	0.921
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
180974 (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 2/20/54.	2205487.cif 2205487.hkl
176432	2016-02-14	cif/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries.	2205487.cif 2205487.hkl
134621	2015-04-02	The 'cif_fix_values' script with an option '--fix-only-weighting-scheme' and 'cif_filter' script were run over CIF files which included an incorrect value of the data item '_refine_ls_weighting_scheme'. Read the log for more details. There were more than 18k CIF files with values to modify. Usually these incorrect values include comment with formulas, but values of this data item must be an enumerator. The script creates new data item '_refine_ls_weighting_details' to store these comments with formulas, and writes the enumerator 'calc' as a value of data item '_refine_ls_weighting_scheme'. There exists some exceptions in the script.	2205487.cif 2205487.hkl
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2205487.cif 2205487.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.	2205487.cif 2205487.hkl
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2205487.cif 2205487.hkl
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2205487.cif 2205487.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).	2205487.cif 2205487.hkl
26025	2011-09-16	hkl/2/ Adding assigned Fobs files for the 1980-2010 IUCr data.	2205487.cif 2205487.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.	2205487.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.	2205487.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.	2205487.cif