Crystallography Open Database
- COD Home
- Accessing COD Data
- Add Your Data
- Documentation
Information card for entry 4020621
Preview
| Coordinates | 4020621.cif |
|---|---|
| Original paper (by DOI) | HTML |
| Formula | C30 H26 O2 |
|---|---|
| Calculated formula | C30 H26 O2 |
| SMILES | O[C@]12C(=C([C@H]3C(=O)[C@@H]4[C@@](c5c([C@@]13C)cccc5)(c1ccccc1)[C@]24C)C)c1ccccc1.O[C@@]12C(=C([C@@H]3C(=O)[C@H]4[C@](c5c([C@]13C)cccc5)(c1ccccc1)[C@@]24C)C)c1ccccc1 |
| Title of publication | Site Selectivity Switch in Lewis Acid Catalysis. Mechanism and Kinetic Simulation of Skeletal Rearrangement of Cyclobutene-Fused Homoquinones |
| Authors of publication | Ken Kokubo; Takuya Koizumi; Kenji Harada; Eiko Mochizuki; Takumi Oshima |
| Journal of publication | Journal of Organic Chemistry |
| Year of publication | 2005 |
| Journal volume | 70 |
| Pages of publication | 7776 - 7779 |
| a | 12.74 ± 0.004 Å |
| b | 13.449 ± 0.01 Å |
| c | 14.248 ± 0.004 Å |
| α | 90° |
| β | 115.2 ± 0.02° |
| γ | 90° |
| Cell volume | 2209.02 Å3 |
| Cell temperature | 288.2 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 |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 178384 (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 4/02/06. |
4020621.cif |
| 120074 | 2014-07-11 | Adding DOIs to range 4/02 structures. | 4020621.cif |
| 34330 | 2012-02-24 | cif/4/ Reorganising CIF range 4 into a prefix tree. |
4020621.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. |
4020621.cif |
| 853 | 2009-11-16 | cif/ Reconstructing spacegroup designators from the symmetry operators were possible. The comands used can be found in the log file reformat-spacegroups-2009.11.14.log committed with the current revision. Only lines that contained spacegroup designators were changed, and all files pass vcif test after the conversion. |
4020621.cif |
| 19 | 2008-01-26 | Changing all end-of-line codes from DOS style to UNIX style in all COD CIF files, for more convenient processing: In the cod/cif/ directory: ff \*.cif | xargs perl -i -pe 's/\r\n/\n/' |
4020621.cif |
| 14 | 2008-01-14 | Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files. |
4020621.cif |
| 13 | 2008-01-13 | Setting the svn:keywords property to "Author Date Revision URL Id" for all CIF files in the cod/cif directory. |
4020621.cif |
| 1 | 2007-11-30 | Adding all .cif files from the COD, downloaded in a Cod.zip file on 2007.02.07 (and the same Cod.zip is downloadable today, on 2007.11.29) |
4020621.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.