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Information card for entry 4023556
Preview
| Coordinates | 4023556.cif |
|---|---|
| Original paper (by DOI) | HTML |
| External links | ChemSpider; PubChem |
| Formula | C18 H12 O3 |
|---|---|
| Calculated formula | C18 H12 O3 |
| SMILES | O1c2ccccc2C(=O)c2c1c1c(cc2)cc(OC)cc1 |
| Title of publication | Synthesis of Benzo[c]xanthones from 2-Benzylidene-1-tetralones by the Ultraviolet Radiation-Mediated Tandem Reaction |
| Authors of publication | Wen-Zhi Xu; Zhi-Tang Huang; Qi-Yu Zheng |
| Journal of publication | Journal of Organic Chemistry |
| Year of publication | 2008 |
| Journal volume | 73 |
| Pages of publication | 5606 - 5608 |
| a | 10.5803 ± 0.0014 Å |
| b | 23.761 ± 0.003 Å |
| c | 4.9298 ± 0.0007 Å |
| α | 90° |
| β | 90° |
| γ | 90° |
| Cell volume | 1239.3 ± 0.3 Å3 |
| Cell temperature | 113 ± 2 K |
| Ambient diffraction temperature | 113 ± 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 | 0.0467 |
| Residual factor for significantly intense reflections | 0.0439 |
| Weighted residual factors for significantly intense reflections | 0.1097 |
| Weighted residual factors for all reflections included in the refinement | 0.1114 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.076 |
| Diffraction radiation wavelength | 0.7107 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301812 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 4/02/ Each referenced PubChem compound corresponds to the full crystal structure. |
4023556.cif |
| 201982 | 2017-10-13 | cif/ Marking COD entries in range 4 that are known to be related to ChemSpider entries using the _cod_related_entry data loop. |
4023556.cif |
| 178414 | 2016-03-21 | cif/4/02/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 4/02/35. |
4023556.cif |
| 120074 | 2014-07-11 | Adding DOIs to range 4/02 structures. | 4023556.cif |
| 34330 | 2012-02-24 | cif/4/ Reorganising CIF range 4 into a prefix tree. |
4023556.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. |
4023556.cif |
| 762 | 2009-06-20 | cif/4/: Adding CIFs from the J-Org-Chem-2008 deposition. |
4023556.cif |
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