Crystallography Open Database
- COD Home
- Accessing COD Data
- Add Your Data
- Documentation
Information card for entry 4023974
Preview
| Coordinates | 4023974.cif |
|---|---|
| Original paper (by DOI) | HTML |
| Formula | C18 H10 O2 |
|---|---|
| Calculated formula | C18 H10 O2 |
| Title of publication | Synthesis of Ladder-Type π-Conjugated Heteroacenes via Palladium-Catalyzed Double N-Arylation and Intramolecular O-Arylation |
| Authors of publication | Keiko Kawaguchi; Koji Nakano; Kyoko Nozaki |
| Journal of publication | Journal of Organic Chemistry |
| Year of publication | 2007 |
| Journal volume | 72 |
| Pages of publication | 5119 - 5128 |
| a | 13.802 ± 0.011 Å |
| b | 5.824 ± 0.005 Å |
| c | 7.345 ± 0.006 Å |
| α | 90° |
| β | 97.723 ± 0.013° |
| γ | 90° |
| Cell volume | 585.1 ± 0.8 Å3 |
| Cell temperature | 103 ± 2 K |
| Ambient diffraction temperature | 103 ± 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 | 0.0422 |
| Residual factor for significantly intense reflections | 0.0316 |
| Weighted residual factors for significantly intense reflections | 0.0716 |
| Weighted residual factors for all reflections included in the refinement | 0.076 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.126 |
| Diffraction radiation wavelength | 0.7107 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | Yes |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 178418 (current) | 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 4/02/39. |
4023974.cif |
| 120074 | 2014-07-11 | Adding DOIs to range 4/02 structures. | 4023974.cif |
| 34330 | 2012-02-24 | cif/4/ Reorganising CIF range 4 into a prefix tree. |
4023974.cif |
| 5312 | 2011-01-03 | cif/ Adding files, updated with the 'cif_fix_enum' program and the cif_core.dic dictionary. The enumerator values were fixed, mostly incorrect case, but also some values that had extra underscores, dashes or spaces. Unfortunately, 22 had non-ASCII characters with the 8-th bit set, and these got incorrectly interpreted as latin1 characters and converted to their UTF8 equivalents by Perl. To fix the structures, however, they need to be redeposited from the original files with the new CIFParser/cif_filter version. |
4023974.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. |
4023974.cif |
| 823 | 2009-09-25 | cif/ Depositing information from the Chem-Comm-2003_01-17 and J-Org-Chem-2007_13-20 publications. |
4023974.cif |
All data in the COD and the database itself are dedicated to the
public domain and licensed under the
CC0
License
.
Users of the data should acknowledge the original authors of the
structural data.