Crystallography Open Database
- COD Home
- Accessing COD Data
- Add Your Data
- Documentation
Information card for entry 2203077
Preview
| Coordinates | 2203077.cif |
|---|---|
| Structure factors | 2203077.hkl |
| Original IUCr paper | HTML |
| External links | ChemSpider; PubChem |
| Formula | C20 H20 O8 |
|---|---|
| Calculated formula | C20 H20 O8 |
| SMILES | o1c(c(OC)c(=O)c2c(O)cc(OC)cc12)c1cc(OC)c(OC)c(OC)c1 |
| Title of publication | 5-Hydroxy-3,3',4',5',7-pentamethoxyflavone (combretol) |
| Authors of publication | Dachriyanus; Rizal Fahmi; Sargent, Melvyn V.; Skelton, Brian W.; White, Allan H. |
| Journal of publication | Acta Crystallographica Section E |
| Year of publication | 2004 |
| Journal volume | 60 |
| Journal issue | 1 |
| Pages of publication | o86 - o88 |
| a | 13.827 ± 0.006 Å |
| b | 29.9 ± 0.014 Å |
| c | 4.244 ± 0.002 Å |
| α | 90° |
| β | 90° |
| γ | 90° |
| Cell volume | 1754.6 ± 1.4 Å3 |
| Cell temperature | 150 ± 2 K |
| Ambient diffraction temperature | 150 ± 2 K |
| Number of distinct elements | 3 |
| Space group number | 33 |
| Hermann-Mauguin space group symbol | P n a 21 |
| Hall space group symbol | P 2c -2n |
| Residual factor for all reflections | 0.106 |
| Residual factor for significantly intense reflections | 0.053 |
| Weighted residual factors for all reflections | 0.072 |
| Weighted residual factors for all reflections included in the refinement | 0.059 |
| Goodness-of-fit parameter for all reflections | 1.062 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.136 |
| Diffraction radiation wavelength | 0.71073 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | Yes |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301803 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 2/20 Each referenced PubChem compound corresponds to the full crystal structure. |
2203077.cif 2203077.hkl |
| 201973 | 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. |
2203077.cif 2203077.hkl |
| 180950 | 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 2/20/30. |
2203077.cif 2203077.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. |
2203077.cif 2203077.hkl |
| 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" |
2203077.cif 2203077.hkl |
| 91933 | 2013-12-28 | cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs. |
2203077.cif 2203077.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. | 2203077.cif 2203077.hkl |
| 32112 | 2012-02-03 | cif/: committing an update of 45+ thous files, with information appended from the originals. | 2203077.cif 2203077.hkl |
| 26848 | 2011-09-28 | cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree. |
2203077.cif 2203077.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). |
2203077.cif 2203077.hkl |
| 26025 | 2011-09-16 | hkl/2/ Adding assigned Fobs files for the 1980-2010 IUCr data. |
2203077.cif 2203077.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. |
2203077.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. |
2203077.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. |
2203077.cif |
| 30 | 2008-01-27 | Adding the reprocessed files from my first COD deposition. Reprocessing with the new cif-tools scripts removed missing tags and added Acta Cryst. Coeditor codes into those files where the corresponding CIF tag was present. Not all reprocessed files were changed. Alsin two entries, cif/8/8000061.cif and cif/8/8000065.cif, were removed manually, both from the CIF file directory and from the cif2cod.txt file, since these two files were detected to be duplicates. |
2203077.cif |
| 14 | 2008-01-14 | Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files. |
2203077.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. |
2203077.cif |
| 5 | 2008-01-03 | Adding 507 CIF files deposited into COD today, on 2008.01.03. |
2203077.cif |
All data in the COD and the database itself are dedicated to the
public domain and licensed under the
CC0
License
.
Users of the data should acknowledge the original authors of the
structural data.