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Information card for entry 4024241
Preview
| Coordinates | 4024241.cif |
|---|---|
| Original paper (by DOI) | HTML |
| External links | ChemSpider |
| Formula | C22 H22 S6 Si2 |
|---|---|
| Calculated formula | C22 H22 S6 Si2 |
| SMILES | s1c([Si](C)(C)C)cc2c3c(csc3sc12)c1csc2sc3sc([Si](C)(C)C)cc3c12 |
| Title of publication | Syntheses and Crystal Structures of Fused Thiophenes: [7]Helicene and Double Helicene, a D2-Symmetric Dimer of 3,3'-Bis(dithieno[2,3-b:3',2'-d]thiophene) |
| Authors of publication | Chunli Li; Jianwu Shi; Li Xu; Yangguang Wang; Yanxiang Cheng; Hua Wang |
| Journal of publication | Journal of Organic Chemistry |
| Year of publication | 2009 |
| Journal volume | 74 |
| Pages of publication | 408 - 411 |
| a | 11.4964 ± 0.0016 Å |
| b | 14.345 ± 0.002 Å |
| c | 15.846 ± 0.002 Å |
| α | 90° |
| β | 90° |
| γ | 90° |
| Cell volume | 2613.3 ± 0.7 Å3 |
| Cell temperature | 296 ± 2 K |
| Ambient diffraction temperature | 296 ± 2 K |
| Number of distinct elements | 4 |
| 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 | 0.0437 |
| Residual factor for significantly intense reflections | 0.0339 |
| Weighted residual factors for significantly intense reflections | 0.0785 |
| Weighted residual factors for all reflections included in the refinement | 0.0834 |
| Goodness-of-fit parameter for all reflections included in the refinement | 0.987 |
| Diffraction radiation wavelength | 0.71073 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 201982 (current) | 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. |
4024241.cif |
| 178421 | 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 4/02/42. |
4024241.cif |
| 120074 | 2014-07-11 | Adding DOIs to range 4/02 structures. | 4024241.cif |
| 34330 | 2012-02-24 | cif/4/ Reorganising CIF range 4 into a prefix tree. |
4024241.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. |
4024241.cif |
| 948 | 2010-01-19 | cif/ Adding CIFs for the Acta-Cryst-B-2009_06/ Acta-Cryst-C-2009_12/ Acta-Cryst-E-2009_12/ J-Appl-Cryst-2009_06/ J-Org-Chem-2009/ deposition. |
4024241.cif |
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