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Information card for entry 9012687
Preview
| Coordinates | 9012687.cif |
|---|---|
| Original paper (by DOI) | HTML |
| External links | AMCSD |
| Mineral name | Parakeldyshite |
|---|---|
| Formula | Na2 O7 Si2 Zr |
| Calculated formula | Na2 O7 Si2 Zr |
| Title of publication | Crystal structure of a new natural modification of Na2Zr[Si2O7] |
| Authors of publication | Voronkov, A. A.; Shumyatskaya, N. G.; Pyatenko, Y. A. |
| Journal of publication | Journal of Structural Chemistry |
| Year of publication | 1970 |
| Journal volume | 11 |
| Pages of publication | 866 - 867 |
| a | 6.66 Å |
| b | 8.83 Å |
| c | 5.42 Å |
| α | 92.75° |
| β | 94.25° |
| γ | 72.33° |
| Cell volume | 302.756 Å3 |
| Number of distinct elements | 4 |
| Space group number | 2 |
| Hermann-Mauguin space group symbol | P -1 |
| Hall space group symbol | -P 1 |
| Has coordinates | Yes |
| Has disorder | No |
| Has Fobs | No |
| Revision | Date | Message | Files |
|---|---|---|---|
| 291877 (current) | 2024-05-16 | Inserting missing Z values in most entries in the 9 range |
9012687.cif |
| 282068 | 2023-03-26 | cod/ (saulius@tasmanijos-velnias) Adding the '_cod_related_entry_...' loop to those COD AMCSD entries that lacked it, and adding the related AMCSD database ID to this loop. |
9012687.cif |
| 282053 | 2023-03-24 | cod/ (saulius@tasmanijos-velnias) Updating the existing COD records from the recent AMCSD downloads: - Adding AMCSD IDs to those COD records that exacly matched the AMCSD structures (comparing unit cells, space groups, coordinates and measurement conditions) but did not yet have the AMCSD ID; - Adding new mineral names, compound sources, measurement conditions (when those were missing) and other informations from the AMCSD CIFs. |
9012687.cif |
| 176465 | 2016-02-16 | cif/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in range 9. |
9012687.cif |
| 120115 | 2014-07-12 | Adding DOIs to range 9 structures. | 9012687.cif |
| 85285 | 2013-05-05 | cod/ (saulius@koala.ibt.lt) Removing outdated _amcsd_database_code data items from all series 9 CIFs. |
9012687.cif |
| 35913 | 2012-02-28 | cif/9/ Reorganising range 9 into a prefix-directory tree. Range 9 is the last range to be reorganised. |
9012687.cif |
| 1210 | 2010-06-10 | cif/9/ Updating 13213 AMCSD CIFs, taking new data from the AMCSD database and adding the assigned AMCSD numbers. |
9012687.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/. |
9012687.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. |
9012687.cif |
| 903 | 2009-11-23 | cif/ Setting svn:keywords property on those CIFs that did not have them. |
9012687.cif |
| 649 | 2009-04-18 | Depositing new CIFs from AMCSD-resynchronisation-2009.03.27/. |
9012687.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.