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Information card for entry 9008989
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| Coordinates | 9008989.cif |
|---|---|
| External links | AMCSD; ChemSpider |
| Formula | K2 O2 |
|---|---|
| Calculated formula | K2 O2 |
| SMILES | [K+].[K+].[O-][O-] |
| Title of publication | Second edition. Interscience Publishers, New York, New York Potassium peroxide |
| Authors of publication | Wyckoff, R. W. G. |
| Journal of publication | Crystal Structures |
| Year of publication | 1963 |
| Journal volume | 1 |
| Pages of publication | 85 - 237 |
| a | 6.736 Å |
| b | 7.001 Å |
| c | 6.479 Å |
| α | 90° |
| β | 90° |
| γ | 90° |
| Cell volume | 305.541 Å3 |
| Number of distinct elements | 2 |
| Space group number | 64 |
| Hermann-Mauguin space group symbol | C m c e |
| Hall space group symbol | -C 2ac 2 |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 291735 (current) | 2024-05-06 | Inserting Z values into entries in the 9 range that miss it. |
9008989.cif |
| 287588 | 2023-11-14 | cod/ (saulius@tasmanijos-velnias) Adding AMCSD links for those COD files that match exactly after corrections of symmetry information. |
9008989.cif |
| 287558 | 2023-11-12 | cod/ (saulius@tasmanijos-velnias) Re-estimating space group symbols for those COD entries that have different space group symbols compared to the new AMCSD collection. IN most cases just the space group designators changed, but a few cases will have to be checked by hand. Command: tail -n +3 outputs/amcsd-cod-spacegroup-updates.tsv | awk '{print $4}' | xargs -i bash -c 'F=$(codid2file {}); echo === {} ===; cif_filter --add-cif-header $F --estimate-spacegroup $F | sponge $F' |
9008989.cif |
| 202019 | 2017-10-14 | cif/ Marking COD entries in range 9 that are known to be related to ChemSpider entries using the _cod_related_entry data loop. |
9008989.cif |
| 85285 | 2013-05-05 | cod/ (saulius@koala.ibt.lt) Removing outdated _amcsd_database_code data items from all series 9 CIFs. |
9008989.cif |
| 77877 | 2013-03-29 | cod/ (saulius@koala.ibt.lt) Removing mineral names from those crystal structures that do not actually describe minerals (e.g. synthetic entries; data source: file COD-minerals.xlsx from my 2012-08-24 15:47 e-mail). |
9008989.cif |
| 77586 | 2013-03-28 | cod/cif/ (saulius@koala.ibt.lt) Merging mineral data updates (_chemical_name_mineral, _chemical_name_common, structural formulae) sent to me by T.D. in his e-mail. The merge was done by the command: for i in split/*.cif do ( B=$(basename $i); C=$(echo $B|awk '{print "/home/saulius/struct/cod/cif/"substr($0,1,1)"/"substr($0,2,2)"/"substr($0,4,2)"/"$0}'); ( set -x; cif_merge --over \ _chemical_name_mineral,_chemical_name_structure_type,_chemical_name_common,_chemical_name_systematic,_chemical_formula_structural,_chemical_formula_sum \ $C $i ) \ | cif_filter --add-cif-header $C \ | sponge $C ) done in the working copy of the following repository: URL: svn+ssh://pitonas.ibt.lt/home/xray/svn-repositories/xyz-extraction/contributions Repository Root: svn+ssh://pitonas.ibt.lt/home/xray/svn-repositories/xyz-extraction Repository UUID: 9acf3947-1f02-0410-ae2a-984b57ad209b Revision: 2625 Node Kind: directory Schedule: normal Last Changed Author: saulius Last Changed Rev: 2625 Last Changed Date: 2013-03-28 15:13:00 +0200 (Thu, 28 Mar 2013) |
9008989.cif |
| 35913 | 2012-02-28 | cif/9/ Reorganising range 9 into a prefix-directory tree. Range 9 is the last range to be reorganised. |
9008989.cif |
| 22767 | 2011-07-15 | cif/9 Fixing some aberrant formulae, spotted when building SMILES |
9008989.cif |
| 1210 | 2010-06-10 | cif/9/ Updating 13213 AMCSD CIFs, taking new data from the AMCSD database and adding the assigned AMCSD numbers. |
9008989.cif |
| 1071 | 2010-04-10 | cif/9/ Updating COD entries from AMCSD, processed in the AMCSD-resynchronisation-2009.06.24/ directory. Entries are updated if they could be unambiguously mapped to a unique COD number by automatic search scripts in AMCSD-resynchronisation-2009.06.24/. |
9008989.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. |
9008989.cif |
| 255 | 2008-03-10 | Redepositing all AMCSD (9*series) COD CIF files. This redeposition regenerates AMCSD (9* series) files, 10011 entries total, from the original source CIF file cifdata.cif found on the CD received from Armel. Most importantly, the truncated formulas seem to be corrected. The files are not folded, i.e. they have lines longer than 80 characters (conforming CIF 1.1 specification, but not CIF 1.0 specification), and are otherwise syntactically correct. Some missing coordinates were fixed manually, restoring them from the AMCSD site, and non-ASCII symbols were fixed automatically during filtering. After the redeposition, the cifs-with-errors.lst was regenerated using the following command: find -name \*.cif \ | xargs -n1 -iI sh -c 'vcif -l 2048 I || echo I' \ | grep -vE 'CIF|ERR' \ | sort > cifs-with-errors.lst & |
9008989.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/' |
9008989.cif |
| 14 | 2008-01-14 | Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files. |
9008989.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. |
9008989.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) |
9008989.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.