Crystallography Open Database
- COD Home
- Accessing COD Data
- Add Your Data
- Documentation
Information card for entry 4025081
Preview
Coordinates | 4025081.cif |
---|---|
Original paper (by DOI) | HTML |
External links | ChemSpider |
Formula | C20 H10 N6 |
---|---|
Calculated formula | C20 H10 N6 |
SMILES | n1c2nc(c(nc2nc(C#N)c1C#N)c1ccccc1)c1ccccc1 |
Title of publication | Pyrazinacenes: Aza Analogues of Acenes |
Authors of publication | Gary J. Richards; Jonathan P. Hill; Navaneetha K. Subbaiyan; Francis D'Souza; Paul A. Karr; Mark R. J. Elsegood; Simon J. Teat; Toshiyuki Mori; Katsuhiko Ariga |
Journal of publication | Journal of Organic Chemistry |
Year of publication | 2009 |
Journal volume | 74 |
Pages of publication | 8914 - 8923 |
a | 9.0585 ± 0.0018 Å |
b | 6.9906 ± 0.0014 Å |
c | 25.138 ± 0.005 Å |
α | 90° |
β | 92.14 ± 0.03° |
γ | 90° |
Cell volume | 1590.7 ± 0.5 Å3 |
Cell temperature | 160 ± 2 K |
Ambient diffraction temperature | 160 ± 2 K |
Number of distinct elements | 3 |
Space group number | 14 |
Hermann-Mauguin space group symbol | P 1 21/n 1 |
Hall space group symbol | -P 2yn |
Residual factor for all reflections | 0.0628 |
Residual factor for significantly intense reflections | 0.0413 |
Weighted residual factors for significantly intense reflections | 0.102 |
Weighted residual factors for all reflections included in the refinement | 0.1203 |
Goodness-of-fit parameter for all reflections included in the refinement | 1.07 |
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. |
4025081.cif |
178429 | 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 4/02/50. |
4025081.cif |
120074 | 2014-07-11 | Adding DOIs to range 4/02 structures. | 4025081.cif |
34330 | 2012-02-24 | cif/4/ Reorganising CIF range 4 into a prefix tree. |
4025081.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. |
4025081.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. |
4025081.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.