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Information card for entry 4000020
Preview
| Coordinates | 4000020.cif |
|---|---|
| Original paper (by DOI) | HTML |
| Formula | C40 H43 Cu2 F8 N8 Nb O2 |
|---|---|
| Calculated formula | C40 H40 Cu F4.5 N8 Nb0.25 O2.5 |
| Title of publication | Synthesis of the Neutral (CuF(NC~5~H~5~)~4~)~2~NbOF~5~ Cluster |
| Authors of publication | Norquist, Alexander J.; Welk, Margaret E.; Stern, Charlotte L.; Poeppelmeier, Kenneth R. |
| Journal of publication | Chemistry of Materials |
| Year of publication | 2000 |
| Journal volume | 12 |
| Journal issue | 7 |
| Pages of publication | 1905 - 1909 |
| a | 24.691 ± 0.001 Å |
| b | 24.691 ± 0.001 Å |
| c | 14.556 ± 0.001 Å |
| α | 90° |
| β | 90° |
| γ | 90° |
| Cell volume | 8873.5 ± 0.9 Å3 |
| Cell temperature | 153.2 K |
| Ambient diffraction temperature | 153.2 K |
| Number of distinct elements | 7 |
| Space group number | 142 |
| Hermann-Mauguin space group symbol | I 41/a c d :2 |
| Hall space group symbol | -I 4bd 2c |
| Residual factor for all reflections | 0.0515 |
| Residual factor for significantly intense reflections | 0.052 |
| Weighted residual factors for all reflections | 0.042 |
| Weighted residual factors for all reflections included in the refinement | 0.042 |
| Goodness-of-fit parameter for all reflections | 1.401 |
| Goodness-of-fit parameter for all reflections included in the refinement | 1.4 |
| Diffraction radiation wavelength | 0.7107 Å |
| Diffraction radiation type | MoKα |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 277839 (current) | 2022-09-14 | cif/ Added space group information derived from the space group operation list using the 'cif_filter' program. |
4000020.cif |
| 178341 | 2016-03-19 | cif/4/00/ (antanas@kurmis) Adding symops and updating space group names for entry 4000020 after consulting the original publication. |
4000020.cif |
| 178340 | 2016-03-19 | cif/4/00/ (antanas@kurmis) Adding full bibliography and additional information from the original publication for entry 4000020. |
4000020.cif |
| 176467 | 2016-02-16 | cif/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in range 4. |
4000020.cif |
| 129439 | 2015-01-07 | cod/ (robertas@burundukas) Correcting values of _exptl_crystal_density_meas and _exptl_crystal_density_method data items: codsql "select codid from validation where message like '%\\'_exptl_crystal_density_meas\\' value \"not measured\" is %'" -NB \ | codid2file \ | xargs perl -i -pe "s/_exptl_crystal_density_meas\\s+'not +measured'/_exptl_crystal_density_meas ?/i; \ s/_exptl_crystal_density_method\\s+('not +measured'|\\?|none)/_exptl_crystal_density_method ./i" |
4000020.cif |
| 54368 | 2012-04-26 | cif/4/ Removing incorrect symmetry operators from two range 4 entries. |
4000020.cif |
| 34330 | 2012-02-24 | cif/4/ Reorganising CIF range 4 into a prefix tree. |
4000020.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. |
4000020.cif |
| 858 | 2009-11-18 | cod/cif/ Changing all _chemical_formula_sum values, were necessary, to conform IUCr recommended syntax and sorting order. After this operation, it will be easier to search for structures using the _chemical_formula_sum values. Only those files and thos lines that really needed to be changed were changed; otehrwise the CIFs were not reformatted. The procedure was as follows: first, all files were passed through a 'cif_filter --parse-formula-sum' command, and the lines containing _cif_formula_sum matching tags were extracted. The extracted tags were "spliced" into the CIF files using the ./bin/{un,}grepciftag commands and awk to filter out old tags and add new tags in their place; the replacement was only done if the new tags contained "_cod_" tags ('grep -q _cod_ tmp-$$'), indicating that cif_filter has altered the formula, or the original file did not contain the _chemical_formula_sum tag ('! grep -q _chemical_formula_sum X'), indicating that cif_filter has guessed the chemical_formula_sum from the file (which should not have happened, actually). If the file was different, disregarding spaces, from the original one ('if ! diff -wb X tmp2-$$'), the original was replaced by the new file, to be committed to the repository. The full command for this step was: ( \ set -x; \ find ? -name \*.cif \ | xargs -n1 -iX \ sh -c 'cif_filter --parse-formula-sum X \ | ./bin/grepciftag _chemical_formula_sum > tmp-$$; \ if grep -q _cod_ tmp-$$ || ! grep -q _chemical_formula_sum X; \ then \ awk "/^#/,/_chemical_formula_sum/{print} /_chemical_formula_sum/{exit}" X \ | ./bin/ungrepciftag _chemical_formula_sum > tmp2-$$; \ cat tmp-$$ >> tmp2-$$; \ awk "/_chemical_formula_sum/,/\$eof/" X \ | ./bin/ungrepciftag _chemical_formula_sum >> tmp2-$$; \ if ! diff -wb X tmp2-$$; \ then \ mv -fv tmp2-$$ X; \ fi; \ fi; \ rm -f tmp-$$ tmp2-$$' \ ) >& sort-chemical-formulae-2009.11.16.log Next, the files were searched that differ from their originals only by the order of CIF tags: svn st \ | awk '/^M/{print $NF}' \ | sort | xargs -n1 -iX \ bash -c 'if diff -q <(svn cat X|sort) <(sort X) >& /dev/null; \ then echo X; \ fi' \ >& only-reordered.lst These files, after manual inspection ('cat only-reordered.lst | xargs svn diff | less'), were reverted to the originals: cat only-reordered.lst | xargs svn revert Finally, a syntax check was performed using 'vcif': svn st | awk '/^M/{print $NF}' \ | sort | xargs -n1 -iX \ sh -c 'echo -n X"\r"; vcif -l 2048 X || { echo == X == ; echo X >&2; }' \ 2> vcif-check-2009.11.18.err A check on the whole COD archive showed the same files as recorded in vcif-check-2009.11.18.err: find ? -name \*.cif \ | sort \ | xargs -n1 -iX \ sh -c 'echo -n X"\r"; \ vcif -l 2048 X || { echo == X == ; echo X >&2; }' \ 2> vcif-all-check-`-date`.err diff vcif-check-2009.11.18.err vcif-all-check-2009.11.18.err Since no differences were detected in between vcif-check-2009.11.18.err and vcif-all-check-2009.11.18.err, the latter was deleted and is not committed. The check reveled two broken files, 2/2000267.cif and 2/2001000.cif; these were corrected manually. Afther this, one more 'vcif' check showed no syntax errors, and the changes are committed into the COD repository. 19798 files have modifications in this commit, according to svn st | grep '^M' | wc -l |
4000020.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/' |
4000020.cif |
| 14 | 2008-01-14 | Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files. |
4000020.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. |
4000020.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) |
4000020.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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