Crystallography Open Database  
  
  - COD Home
- Accessing COD Data
- Add Your Data
- Documentation
Information card for entry 2018356
Preview
| Coordinates | 2018356.cif | 
|---|---|
| Structure factors | 2018356.hkl | 
| Original IUCr paper | HTML | 
| External links | ChemSpider; PubChem | 
| Common name | Tizanidine | 
|---|---|
| Chemical name | 5-chloro-<i>N</i>-(imidazolidin-2-ylidene)-2,1,3-benzothiadiazol-4-amine | 
| Formula | C9 H8 Cl N5 S | 
| Calculated formula | C9 H8 Cl N5 S | 
| SMILES | Clc1c(/N=C2/NCCN2)c2nsnc2cc1 | 
| Title of publication | Tizanidine and tizanidine hydrochloride: on the correct tautomeric form of tizanidine | 
| Authors of publication | Bekö, Sándor L.; Thoms, Silke D.; Schmidt, Martin U.; Bolte, Michael | 
| Journal of publication | Acta Crystallographica Section C | 
| Year of publication | 2012 | 
| Journal volume | 68 | 
| Journal issue | 1 | 
| Pages of publication | o28 - o32 | 
| a | 7.5935 ± 0.0006 Å | 
| b | 10.8712 ± 0.0009 Å | 
| c | 12.8862 ± 0.0012 Å | 
| α | 95.794 ± 0.007° | 
| β | 100.349 ± 0.007° | 
| γ | 92.125 ± 0.007° | 
| Cell volume | 1039.45 ± 0.16 Å3 | 
| Cell temperature | 173 ± 2 K | 
| Ambient diffraction temperature | 173 ± 2 K | 
| Number of distinct elements | 5 | 
| Space group number | 2 | 
| Hermann-Mauguin space group symbol | P -1 | 
| Hall space group symbol | -P 1 | 
| Residual factor for all reflections | 0.0321 | 
| Residual factor for significantly intense reflections | 0.0285 | 
| Weighted residual factors for significantly intense reflections | 0.0745 | 
| Weighted residual factors for all reflections included in the refinement | 0.0762 | 
| Goodness-of-fit parameter for all reflections included in the refinement | 1.059 | 
| Diffraction radiation wavelength | 0.71073 Å | 
| Diffraction radiation type | MoKα | 
| Has coordinates | Yes | 
| Has disorder | No | 
| Has Fobs | Yes | 
| Revision | Date | Message | Files | 
|---|---|---|---|
| 301798 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 2/01 Each referenced PubChem compound corresponds to the full crystal structure. | 2018356.cif 2018356.hkl | 
| 201957 | 2017-10-13 | cif/2/ Marking COD entries in range 2/01 that are known to be related to ChemSpider entries using the _cod_related_entry data loop. | 2018356.cif 2018356.hkl | 
| 180852 | 2016-04-02 | cif/2/01/ (antanas@echidna) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/01/83. | 2018356.cif 2018356.hkl | 
| 176760 | 2016-02-20 | cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/01. | 2018356.cif 2018356.hkl | 
| 125873 | 2014-10-25 | cod/ (saulius@koala.ibt.lt) Adding DOIs to 1887 Acta Cryst. CIFs, their DOIs fetched using ACCE codes. | 2018356.cif 2018356.hkl | 
| 88064 | 2013-08-29 | Adding _cod_database_fobs_code data item to all COD CIFs that have Fobs deposited and did not have this data item yet. | 2018356.cif 2018356.hkl | 
| 34292 | 2012-02-14 | hkl/ Adding Fobs data for the recently deposited IUCr structures. | 2018356.cif 2018356.hkl | 
| 32356 | 2012-02-08 | ../uploads/cif-deposit/cod/cif Adding structures of 2018356, 2018357 via cif-deposit CGI script. | 2018356.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.