Crystallography Open Database

Information card for entry 7217345

Preview

Coordinates	7217345.cif
Original paper (by DOI)	HTML

Structure parameters

Formula	Ag3 Ga3 Se8 Si
Calculated formula	Ag3 Ga3 Se8 Si
Title of publication	Ag3Ga3SiSe8: a new infrared nonlinear optical material with a chalcopyrite structure
Authors of publication	Mei, Dajiang; Gong, Pifu; Lin, Zheshuai; Feng, Kai; Yao, Jiyong; Huang, Fuqiang; Wu, Yicheng
Journal of publication	CrystEngComm
Year of publication	2014
Journal volume	16
Journal issue	30
Pages of publication	6836
a	5.9041 ± 0.0008 Å
b	5.9041 ± 0.0008 Å
c	10.499 ± 0.002 Å
α	90°
β	90°
γ	90°
Cell volume	365.98 ± 0.1 Å³
Cell temperature	93 ± 2 K
Ambient diffraction temperature	93 ± 2 K
Number of distinct elements	4
Space group number	122
Hermann-Mauguin space group symbol	I -4 2 d
Hall space group symbol	I -4 2bw
Residual factor for all reflections	0.0315
Residual factor for significantly intense reflections	0.0273
Weighted residual factors for significantly intense reflections	0.0547
Weighted residual factors for all reflections included in the refinement	0.0558
Goodness-of-fit parameter for all reflections included in the refinement	1.134
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Duplicate of	7216410
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
180504 (current)	2016-03-26	cif/7/21/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 7/21/73.	7217345.cif
130086	2015-01-23	cod/ (robertas@burundukas) The 'cif_fix_values' program was applied to CIFs that have generated the validation messages containing tag '_exptl_crystal_density_meas'. 16946 CIFs had a values that were perceived as 'not measured' and they were changed to '?'. The total of 17089 CIFs was changed. Those that were not corrected by 'cif_fix_values' were reformatted by the parser (e.g. a doi tag was moved to another place). The processing command was: mysql -u cod_reader -h www.crystallography.net cod -e \ 'select distinct codid from validation \ where message like \ "%tag%_exptl_crystal_density_meas'\''%"' -NB \ \| xargs -i sh -c 'cif_fix_values {} \ \| cif_filter --add-cif-header {} \ \| sponge {}'	7217345.cif
124581	2014-10-05	cif/ (saulius@koala.ibt.lt) Marking up 890 duplicates of COD. The duplicates were indentified as entries havin identical DOIs, cell length parameters and formulae, unspecified or identical RI R-factors, and not already marked as duplicates or suboptimal structures. Furthermore, coordinates had to be identical when comparing results of cif2ref conversion: codsql \ 'select d1.file, d1.doi, d2.file, d2.doi from data as d1 join data as d2 on d1.doi = d2.doi where d1.a = d2.a and d1.b = d2.b and d1.c = d2.c and d1.duplicateof is null and d2.duplicateof is null and d1.optimal is null and d2.optimal is null and (d1.RI is null or d2.RI is null or d1.RI = d2.RI) and d1.file > d2.file and (d1.formula = d2.formula or d1.calcformula = d2.calcformula)' \ -NB \ \| awk '{print $1, $3}' \ \| xargs codid2file \ \| xargs -n2 \ \| xargs -i bash -c ' \ CIF1=$(echo {} \| awk "{print \$1}"); \ CIF2=$(echo {} \| awk "{print \$2}"); \ echo -e "\n=== {} ==="; \ diff -bw -u <(cif2ref $CIF1) <(cif2ref $CIF2)' \ \| perl -00 -ne 'print unless /^(-\|\+)/m' \ \| grep . > ~/duplicates-2014-10-05.lst The resulting '~/duplicates-2014-10-05.lst' was post-processed as follows: awk '{print $2, $3}' duplicates-2014-10-05.lst \ \| xargs -i bash -c ' \ ID2=$(basename $(echo {} \| awk "{print \$2}") .cif); \ CIF1=$(echo {} \| awk "{print \$1}"); \ set -x; echo _cod_duplicate_entry $ID2 >> $CIF1' Structures from one powder diffraction paper were reverted: svn revert /home/saulius/struct/cod/cif/4/12/19/412199[567].cif And two files with more than one duplicate identified were fixed by hand: emacs -nw /home/saulius/struct/cod/cif/7/05/43/7054322.cif emacs -nw /home/saulius/struct/cod/cif/7/05/43/7054325.cif	7217345.cif
121439	2014-08-06	cif/ Adding structures of 7217345 via cif-deposit CGI script.	7217345.cif