Crystallography Open Database

Information card for entry 7218008

Preview

Coordinates	7218008.cif
Original paper (by DOI)	HTML

Structure parameters

Formula	C28 H22
Calculated formula	C28 H22
Title of publication	Exploration of the polymorph landscape for 1,1,4,4-tetraphenyl-1,3-butadiene
Authors of publication	Bacchi, A.; Brillante, A.; Crocco, D.; Chierotti, M. R.; Della Valle, R. G.; Girlando, A.; Masino, M.; Pelagatti, P.; Venuti, E.
Journal of publication	CrystEngComm
Year of publication	2014
Journal volume	16
Journal issue	35
Pages of publication	8205
a	9.835 ± 0.007 Å
b	10.222 ± 0.007 Å
c	16.06 ± 0.01 Å
α	83.79 ± 0.01°
β	76.41 ± 0.01°
γ	87.92 ± 0.01°
Cell volume	1560.1 ± 1.8 Å³
Cell temperature	293 ± 2 K
Ambient diffraction temperature	293 ± 2 K
Number of distinct elements	2
Space group number	2
Hermann-Mauguin space group symbol	P -1
Hall space group symbol	-P 1
Residual factor for all reflections	0.0782
Residual factor for significantly intense reflections	0.0582
Weighted residual factors for significantly intense reflections	0.1615
Weighted residual factors for all reflections included in the refinement	0.1822
Goodness-of-fit parameter for all reflections included in the refinement	1.039
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Duplicate of	7216734
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
180511 (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 7/21/80.	7218008.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	7218008.cif
123199	2014-09-07	cif/ Adding structures of 7218008, 7218009 via cif-deposit CGI script.	7218008.cif