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Information card for entry 2100450
Preview
| Coordinates | 2100450.cif |
|---|---|
| Original IUCr paper | HTML |
| External links | PubChem |
| Common name | 1,2,4,5-tetrachlorobenzene - beta polymorph |
|---|---|
| Chemical name | 1,2,4,5-tetrachlorobenzene |
| Formula | C6 Cl4 D2 |
| Calculated formula | C6 Cl4 D2 |
| SMILES | Clc1c(c(Cl)c(Cl)c(c1Cl)[2H])[2H] |
| Title of publication | Single-crystal X-ray and neutron powder diffraction investigation of the phase transition in tetrachlorobenzene |
| Authors of publication | Barnett, Sarah A.; Broder, Charlotte K.; Shankland, Kenneth; David, Bill I. F.; Ibberson, Richard; Tocher, Derek A. |
| Journal of publication | Acta Crystallographica Section B |
| Year of publication | 2006 |
| Journal volume | 62 |
| Journal issue | 2 |
| Pages of publication | 287 - 295 |
| a | 3.78988 ± 0.00004 Å |
| b | 10.50328 ± 0.00005 Å |
| c | 9.56244 ± 0.00003 Å |
| α | 90° |
| β | 99.7184 ± 0.0006° |
| γ | 90° |
| Cell volume | 375.182 ± 0.005 Å3 |
| Cell temperature | 150 ± 2 K |
| Ambient diffraction temperature | 150 ± 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 |
| Goodness-of-fit parameter for all reflections | 1.324 |
| Diffraction radiation probe | neutron |
| Diffraction radiation type | Neutron |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 301802 (current) | 2025-08-19 | Add cross-references to PubChem compounds in COD range 2/10 Each referenced PubChem compound corresponds to the full crystal structure. |
2100450.cif |
| 176768 | 2016-02-20 | cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/10. |
2100450.cif |
| 106285 | 2014-03-15 | cod/ (saulius@kolibris) Adding the '_diffrn_radiation_probe neutron' data item to those COD CIFs that declared neuron radiation in their _diffrn_radiation_type data field, and did not have a _diffrn_radiation_probe item yet: codsql 'select file from data where radiation is null and radType like "%neutron%"' -NB \ | codid2file \ | xargs -i sh -c 'test -f {} && ( set -x; echo _diffrn_radiation_probe neutron >> {} )' Two files that had no newlines at the end were fixed manually. |
2100450.cif |
| 91933 | 2013-12-28 | cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs. |
2100450.cif |
| 32112 | 2012-02-03 | cif/: committing an update of 45+ thous files, with information appended from the originals. | 2100450.cif |
| 26848 | 2011-09-28 | cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree. |
2100450.cif |
| 26029 | 2011-09-17 | cif/2/ Reverting changes of revision 25271: ( cd cif/2/; svn merge -r25271:25270 . ) The problem was that the reprocessed files from IUCr, although were more complete, "resurrected" data errors that were corrected in the previous recisions. The additional data that have been extracted during the reprocessing will have to be merged without overwriting the existing values in COD files, except some explicit and controlled cases (such as publication titles and chemical names). |
2100450.cif |
| 25271 | 2011-09-10 | cif/2/ Adding reporocessed IUCr CIFs for the years 1980-2010. The CIFs now contain more complete bibliography, substance names, correctly unfolded text fields (using the CIF line unfolding protocol), explicitely set cell angles, and _cod_data_source_block fields. |
2100450.cif |
| 5310 | 2011-01-02 | cif/ Running cif_fix_enum with the core CIF dictionary on COD ranges 2, 8 and 9. Range 9 remained unchanged, and in ranges 2 and 8 there were 17309 modified files, most changes were fixes enumerator case. |
2100450.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. |
2100450.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. |
2100450.cif |
| 321 | 2008-03-30 | Changing the COD CIF files header (comments) in all files that were recently deposited from the IUCr autodownloaded sources to the text agreed with IUCr. |
2100450.cif |
| 30 | 2008-01-27 | Adding the reprocessed files from my first COD deposition. Reprocessing with the new cif-tools scripts removed missing tags and added Acta Cryst. Coeditor codes into those files where the corresponding CIF tag was present. Not all reprocessed files were changed. Alsin two entries, cif/8/8000061.cif and cif/8/8000065.cif, were removed manually, both from the CIF file directory and from the cif2cod.txt file, since these two files were detected to be duplicates. |
2100450.cif |
| 14 | 2008-01-14 | Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files. |
2100450.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. |
2100450.cif |
| 5 | 2008-01-03 | Adding 507 CIF files deposited into COD today, on 2008.01.03. |
2100450.cif |
All data in the COD and the database itself are dedicated to the
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Users of the data should acknowledge the original authors of the
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