Crystallography Open Database

Information card for entry 2100681

Preview

Coordinates	2100681.cif
Original IUCr paper	HTML
External links	ChemSpider

Structure parameters

Formula	C23 H20 N2 O4
Calculated formula	C23 H20 N2 O4
SMILES	O=C(C=C(NCc1ccccc1)c1ccc(OC)cc1)c1cc(N(=O)=O)ccc1
Title of publication	Interplay between steric and electronic factors in determining the strength of intramolecular N—H···O resonance-assisted hydrogen bonds in β-enaminones
Authors of publication	V. Bertolasi; L. Pretto; V. Ferretti; P. Gilli; G. Gilli
Journal of publication	Acta Crystallographica Section B
Year of publication	2006
Journal volume	62
Journal issue	6
Pages of publication	1112 - 1120
a	6.9599 ± 0.0002 Å
b	8.4786 ± 0.0003 Å
c	17.1616 ± 0.0006 Å
α	82.282 ± 0.002°
β	78.773 ± 0.002°
γ	75.599 ± 0.002°
Cell volume	958.18 ± 0.06 Å³
Cell temperature	150 K
Ambient diffraction temperature	150 K
Number of distinct elements	4
Space group number	2
Hermann-Mauguin space group symbol	P -1
Hall space group symbol	-P 1
Residual factor for all reflections	0.0751
Residual factor for significantly intense reflections	0.0555
Weighted residual factors for significantly intense reflections	0.1091
Weighted residual factors for all reflections included in the refinement	0.1234
Goodness-of-fit parameter for all reflections included in the refinement	1.188
Diffraction radiation wavelength	0.7107 Å
Diffraction radiation type	MoKα
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.	2100681.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.	2100681.cif
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2100681.cif
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2100681.cif
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2100681.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).	2100681.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.	2100681.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.	2100681.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.	2100681.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.	2100681.cif
156	2008-02-24	Depositing the processed CIF files from the Acta-Cryst-B-2006/ issues 3-6.	2100681.cif