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Information card for entry 2235370
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| Coordinates | 2235370.cif |
|---|---|
| Structure factors | 2235370.hkl |
| Original IUCr paper | HTML |
| External links | PubChem |
| Chemical name | 5,6-dimethyl-1,2,9,10-tetrahydropyrano[3,2-<i>f</i>]chromene-3,8-dione |
|---|---|
| Formula | C14 H14 O4 |
| Calculated formula | C14 H14 O4 |
| SMILES | O=C1CCc2c(O1)c(C)c(c1c2CCC(=O)O1)C |
| Title of publication | 5,6-Dimethyl-1,2,9,10-tetrahydropyrano[3,2-<i>f</i>]chromene-3,8-dione |
| Authors of publication | Goswami, Shailesh K.; Hanton, Lyall R.; McAdam, C. John; Moratti, Stephen C.; Simpson, Jim |
| Journal of publication | Acta Crystallographica Section E |
| Year of publication | 2012 |
| Journal volume | 68 |
| Journal issue | 7 |
| Pages of publication | o2216 |
| a | 16.0726 ± 0.0002 Å |
| b | 8.7982 ± 0.0001 Å |
| c | 8.0555 ± 0.0001 Å |
| α | 90° |
| β | 96.1134 ± 0.0007° |
| γ | 90° |
| Cell volume | 1132.65 ± 0.02 Å3 |
| Cell temperature | 92 ± 2 K |
| Ambient diffraction temperature | 92 ± 2 K |
| Number of distinct elements | 3 |
| 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 | 0.0631 |
| Residual factor for significantly intense reflections | 0.0503 |
| Weighted residual factors for significantly intense reflections | 0.1403 |
| Weighted residual factors for all reflections included in the refinement | 0.1478 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.079 |
| Diffraction radiation wavelength | 0.71073 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | Yes |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301806 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 2/23 Each referenced PubChem compound corresponds to the full crystal structure. |
2235370.cif 2235370.hkl |
| 181275 | 2016-04-03 | hkl/2/23/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/23/53. |
2235370.cif 2235370.hkl |
| 176798 | 2016-02-21 | cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/23. |
2235370.cif 2235370.hkl |
| 120072 | 2014-07-11 | Adding DOIs to range 2 structures. | 2235370.cif 2235370.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. | 2235370.cif 2235370.hkl |
| 66590 | 2012-09-11 | hkl/ Adding assigned .htl files for the most recent IUCr data depositions. |
2235370.cif 2235370.hkl |
| 63814 | 2012-08-10 | cif/ Adding structures of 2235370 via cif-deposit CGI script. |
2235370.cif |
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Users of the data should acknowledge the original authors of the
structural data.