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Information card for entry 2018580
Preview
| Coordinates | 2018580.cif |
|---|---|
| Structure factors | 2018580.hkl |
| Original IUCr paper | HTML |
| External links | ChemSpider; PubChem |
| Common name | physcion |
|---|---|
| Chemical name | 7-methoxy-2-methyl-4,5-dihydroxyanthracene-9,10-dione |
| Formula | C16 H12 O5 |
| Calculated formula | C16 H12 O5 |
| SMILES | c1c(cc(c2c1C(=O)c1cc(cc(c1C2=O)O)OC)O)C |
| Title of publication | A new polymorph of physcion |
| Authors of publication | Hopf, Henning; Jones, Peter G.; Goclik, Eva; Aust, Pauline; Rödiger, Johanna |
| Journal of publication | Acta Crystallographica Section C |
| Year of publication | 2012 |
| Journal volume | 68 |
| Journal issue | 8 |
| Pages of publication | o317 - o319 |
| a | 6.1986 ± 0.0003 Å |
| b | 24.547 ± 0.0012 Å |
| c | 8.1004 ± 0.0004 Å |
| α | 90° |
| β | 95.37 ± 0.004° |
| γ | 90° |
| Cell volume | 1227.12 ± 0.1 Å3 |
| Cell temperature | 130 ± 2 K |
| Ambient diffraction temperature | 130 ± 2 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 | 0.0468 |
| Residual factor for significantly intense reflections | 0.0432 |
| Weighted residual factors for significantly intense reflections | 0.1219 |
| Weighted residual factors for all reflections included in the refinement | 0.1256 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.052 |
| Diffraction radiation wavelength | 1.54184 Å |
| Diffraction radiation type | CuKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | Yes |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301798 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 2/01 Each referenced PubChem compound corresponds to the full crystal structure. |
2018580.cif 2018580.hkl |
| 201957 | 2017-10-13 | cif/2/ Marking COD entries in range 2/01 that are known to be related to ChemSpider entries using the _cod_related_entry data loop. |
2018580.cif 2018580.hkl |
| 180854 | 2016-04-02 | cif/2/01/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/01/85. |
2018580.cif 2018580.hkl |
| 176760 | 2016-02-20 | cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/01. |
2018580.cif 2018580.hkl |
| 125873 | 2014-10-25 | cod/ (saulius@koala.ibt.lt) Adding DOIs to 1887 Acta Cryst. CIFs, their DOIs fetched using ACCE codes. |
2018580.cif 2018580.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. | 2018580.cif 2018580.hkl |
| 66590 | 2012-09-11 | hkl/ Adding assigned .htl files for the most recent IUCr data depositions. |
2018580.cif 2018580.hkl |
| 66007 | 2012-09-06 | cif/ Adding structures of 2018580 via cif-deposit CGI script. |
2018580.cif |
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Users of the data should acknowledge the original authors of the
structural data.