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Information card for entry 2103156
Preview
| Coordinates | 2103156.cif |
|---|---|
| Original IUCr paper | HTML |
| External links | ChemSpider; PubChem |
| Chemical name | 6-hydroxhy-4,4,5,7,8-pentamethyl-3,4-dihydrocoumarin |
|---|---|
| Formula | C14 H18 O3 |
| Calculated formula | C14 H18 O3 |
| SMILES | O1C(=O)CC(C)(C)c2c(C)c(O)c(C)c(C)c12 |
| Title of publication | Coupling of the lactone-ring conformation with crystal symmetry in 6-hydroxy-4,4,5,7,8-pentamethyl-3,4-dihydrocoumarin |
| Authors of publication | Budzianowski, Armand; Katrusiak, Andrzej |
| Journal of publication | Acta Crystallographica Section B |
| Year of publication | 2002 |
| Journal volume | 58 |
| Journal issue | 1 |
| Pages of publication | 125 - 133 |
| a | 9.76 ± 0.007 Å |
| b | 6.863 ± 0.002 Å |
| c | 19.113 ± 0.004 Å |
| α | 90° |
| β | 94.75 ± 0.04° |
| γ | 90° |
| Cell volume | 1275.8 ± 1 Å3 |
| Cell temperature | 225.1 ± 0.1 K |
| Ambient diffraction temperature | 225.1 ± 0.1 K |
| Number of distinct elements | 3 |
| Space group number | 14 |
| Hermann-Mauguin space group symbol | P 1 21/c 1 |
| Hall space group symbol | -P 2ybc |
| Residual factor for all reflections | 0.2229 |
| Residual factor for significantly intense reflections | 0.0558 |
| Weighted residual factors for significantly intense reflections | 0.0716 |
| Weighted residual factors for all reflections included in the refinement | 0.085 |
| Goodness-of-fit parameter for all reflections included in the refinement | 0.985 |
| Diffraction radiation wavelength | 0.71073 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301802 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 2/10 Each referenced PubChem compound corresponds to the full crystal structure. |
2103156.cif |
| 201972 | 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. |
2103156.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. |
2103156.cif |
| 134573 | 2015-04-01 | cod/ (robertas@burundukas) The 'cif_fix_values' script was applied on the CIF files, which had notes in the COD database's table 'validations' generated by the 'cif_validate' validator about misspelling of the enumerable values of the data item '_symmetry_cell_setting'. There was used the option '--fix-only-misspelled'. And there were used 'cif_filter' later in the pipe. Read the log for more details. There were 595 distinct CIF files which had messages from validator. The 'cif_fix_values' script generated 417 messages about corrected misspelled values of enumerators to the log file. Some messages were generated by 'cif_filter' and some changes by the 'cif_filter' were done without messaging to the log file. The 'cif_fix_value' script corrected the enumerators of all data items presented in the file for the replacement of the misspelled values. |
2103156.cif |
| 91933 | 2013-12-28 | cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs. |
2103156.cif |
| 32112 | 2012-02-03 | cif/: committing an update of 45+ thous files, with information appended from the originals. | 2103156.cif |
| 26848 | 2011-09-28 | cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree. |
2103156.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). |
2103156.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. |
2103156.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. |
2103156.cif |
| 380 | 2008-06-11 | Adding new deposition of the Acta-Cryst-B-2002/ CIF files. |
2103156.cif |
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Users of the data should acknowledge the original authors of the
structural data.