Crystallography Open Database

Information card for entry 9017313

Preview

Coordinates	9017313.cif
External links	AMCSD

Structure parameters

Mineral name	Gypsum
Formula	Ca H4 O6 S
Calculated formula	Ca H4 O6 S
Title of publication	Neutron diffraction refinement of the structure of gypsum, CaSO4*2H2O
Authors of publication	Pedersen, B. F.; Semmingsen, D.
Journal of publication	Acta Crystallographica, Section B
Year of publication	1982
Journal volume	38
Pages of publication	1074 - 1077
a	5.679 Å
b	15.202 Å
c	6.522 Å
α	90°
β	118.43°
γ	90°
Cell volume	495.153 Å³
Number of distinct elements	4
Space group number	15
Hermann-Mauguin space group symbol	I 1 2/c 1
Hall space group symbol	-I 2yc
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
283658 (current)	2023-05-10	cod/ (saulius@tasmanijos-velnias) Estimating atom types and attached hydrogen counts using the new cod-tools scripts [1], for those AMCSD files that had Wat or O-H or OW atoms, and where declared and computed formula matches after the update. Several files were spotted manually where attached hydrogen counts will need to be updated to match the title formula. The update command was: 553 ( set -x; directory-metadata; grep ^9 formula-with-estimated-atoms-all.tsv \| grep = \| awk '{print $1}' \| sort -u \| codid2file \| xargs -i bash -c 'Z=$(cifvalues --no-dataname --tag _cell_formula_units_Z {}); if [ $Z = "?" ]; then NEW_Z=$(cif_estimate_Z {}); fi; cif_guess_AMCSD_atom_types {} \| (if [ $Z = "?" -a -n "$NEW_Z" ]; then cif_select --invert --tag _cell_formula_units_Z \| cat - <(echo _cell_formula_units_Z $NEW_Z); else cat; fi) \| cif_filter --add-cif-header {} \| sponge {}; echo Updated: {}'; date ) &> update-files-with-matching-formulae.log & run in the working copy of the repo [2]. Ref.: [1] saulius@tasmanijos-velnias COD/ $ svn info ~/src/cod-tools Path: /home/saulius/src/cod-tools Working Copy Root Path: /home/saulius/src/cod-tools URL: svn://cod.ibt.lt/cif-tools/trunk Relative URL: ^/trunk Repository Root: svn://cod.ibt.lt/cif-tools Repository UUID: 04be6746-3802-0410-999d-98508da1e98c Revision: 9577 Node Kind: directory Schedule: normal Last Changed Author: saulius Last Changed Rev: 9577 Last Changed Date: 2023-05-10 16:36:19 +0300 (Wed, 10 May 2023) [2] saulius@tasmanijos-velnias cod-entries-Wat-O-H-atoms/ $ svn info Path: . Working Copy Root Path: /home/saulius/tmp URL: svn+ssh://saulius.grazulis.lt/home/saulius/svn-repositories/tmp/COD/cod-entries-Wat-O-H-atoms Relative URL: ^/COD/cod-entries-Wat-O-H-atoms Repository Root: svn+ssh://saulius.grazulis.lt/home/saulius/svn-repositories/tmp Repository UUID: d3bd5daf-38a0-45fb-a3f8-6742599c9cef Revision: 580 Node Kind: directory Schedule: normal Last Changed Author: saulius Last Changed Rev: 580 Last Changed Date: 2023-05-06 10:43:38 +0300 (Sat, 06 May 2023)	9017313.cif
282074	2023-03-27	cod/ (saulius@kukutis) Syncronising the AMCSD and the COD: depositing those AMCSD files that are genuinely new (i.e. do not have corresponding COD entries when compared using DOI, atomic coordinates, cell parameters and symmetry).	9017313.cif