Crystallography Open Database

Information card for entry 2224117

Preview

Coordinates	2224117.cif
Structure factors	2224117.hkl
Original IUCr paper	HTML
External links	PubChem

Structure parameters

Chemical name	9,9-Dimethyl-12-(4-nitrophenyl)-9,10-dihydro-12<i>H</i>- benzo[<i>a</i>]xanthen-11(8<i>H</i>)-one
Formula	C25 H21 N O4
Calculated formula	C25 H21 N O4
SMILES	O1c2ccc3ccccc3c2C(C2=C1CC(CC2=O)(C)C)c1ccc(N(=O)=O)cc1
Title of publication	9,9-Dimethyl-12-(4-nitrophenyl)-9,10-dihydro-12<i>H</i>-benzo[<i>a</i>]xanthen-11(8<i>H</i>)-one
Authors of publication	Li, De-Ling; Wang, Li-Hong
Journal of publication	Acta Crystallographica Section E
Year of publication	2009
Journal volume	65
Journal issue	12
Pages of publication	o3141
a	24.178 ± 0.005 Å
b	11.078 ± 0.002 Å
c	17.481 ± 0.004 Å
α	90°
β	119.78 ± 0.03°
γ	90°
Cell volume	4063.8 ± 1.9 Å³
Cell temperature	113 ± 2 K
Ambient diffraction temperature	113 ± 2 K
Number of distinct elements	4
Space group number	15
Hermann-Mauguin space group symbol	C 1 2/c 1
Hall space group symbol	-C 2yc
Residual factor for all reflections	0.0749
Residual factor for significantly intense reflections	0.0554
Weighted residual factors for significantly intense reflections	0.1384
Weighted residual factors for all reflections included in the refinement	0.1531
Goodness-of-fit parameter for all reflections included in the refinement	1.032
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
301805 (current)	2025-08-19	Add cross-references to PubChem compounds in COD range 2/22 Each referenced PubChem compound corresponds to the full crystal structure.	2224117.cif 2224117.hkl
181162	2016-04-03	hkl/2/22/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/22/41.	2224117.cif 2224117.hkl
176789	2016-02-20	cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/22.	2224117.cif 2224117.hkl
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2224117.cif 2224117.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.	2224117.cif 2224117.hkl
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2224117.cif 2224117.hkl
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2224117.cif 2224117.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).	2224117.cif 2224117.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.	2224117.cif 2224117.hkl
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.	2224117.cif 2224117.hkl
960	2010-01-22	hkl/ Adding Fobs data for the recent IUCr structure depositions.	2224117.cif 2224117.hkl
948	2010-01-19	cif/ Adding CIFs for the Acta-Cryst-B-2009_06/ Acta-Cryst-C-2009_12/ Acta-Cryst-E-2009_12/ J-Appl-Cryst-2009_06/ J-Org-Chem-2009/ deposition.	2224117.cif