Crystallography Open Database

Information card for entry 7105367

Preview

Coordinates	7105367.cif
Original paper (by DOI)	HTML

Structure parameters

Common name	2,3-bis(difluoromethylene)-1,2,3,4-tetrahydro-1,4-diphenyl- 1,4-epoxynaphthalene
Formula	C24 H14 F4 O
Calculated formula	C24 H14 F4 O
SMILES	C(=C1[C@@]2(c3ccccc3[C@@](C1=C(F)F)(c1ccccc1)O2)c1ccccc1)(F)F
Title of publication	Diels-Alder reactions of 1,1,4,4-tetrafluorobutatriene.
Authors of publication	Ehm, Christian; Lentz, Dieter
Journal of publication	Chemical communications (Cambridge, England)
Year of publication	2010
Journal volume	46
Journal issue	14
Pages of publication	2399 - 2401
a	14.81 ± 0.006 Å
b	8.927 ± 0.003 Å
c	26.933 ± 0.01 Å
α	90°
β	91.12 ± 0.01°
γ	90°
Cell volume	3560 ± 2 Å³
Cell temperature	133 ± 2 K
Ambient diffraction temperature	133 ± 2 K
Number of distinct elements	4
Space group number	14
Hermann-Mauguin space group symbol	P 1 21/n 1
Hall space group symbol	-P 2yn
Residual factor for all reflections	0.156
Residual factor for significantly intense reflections	0.0971
Weighted residual factors for significantly intense reflections	0.2189
Weighted residual factors for all reflections included in the refinement	0.2684
Goodness-of-fit parameter for all reflections included in the refinement	0.987
Diffraction radiation wavelength	0.71073 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
180157 (current)	2016-03-26	cif/7/10/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 7/10/53.	7105367.cif
106525	2014-03-15	cif/ (saulius@koala.ibt.lt) Adding DOIs to those Chem. Comm. structure descriptions that did not have it before and that could be matched unambiguously. Unambiguously means: a) journal name is "like 'Chem%Com%'" in SQl parlour b) first author's last name is the same in COD and in PubMed b) publication year and first page are the same in COD and in PubMed database. The commands to change these files where: awk '{print $1, $2}' outputs/join-dois.tab \ \| xargs -i sh -c ' CODID=$(echo {} \| awk "{print \$1}"); DOI=$(echo {} \| awk "{print \$2}"); CODFILE=$(echo $CODID \| codid2file); if ! grep -q _journal_paper_doi $CODFILE; then ( set -x; echo _journal_paper_doi $DOI >> $CODFILE ); else echo $CODID already has DOI; fi' Some files that did not had new-line at the end had to be fixed afterwards (in the ~/struct/cod/cif/7 directory, a COD working copy): svn st \ \| awk '{print $2}' \ \| xargs cifparse -q 2> /dev/null \ \| awk -F"'" '{print $2}' \ \| xargs perl -i -pe 's/_journal_paper_doi/\n_journal_paper_doi/' The working copy containing 'outputs/join-dois.tab' was: Path: /home/saulius/struct/xyz-extraction/dois/chem-comm-refetched-from-pubmed URL: svn+ssh://pitonas.ibt.lt/home/xray/svn-repositories/xyz-extraction/dois/chem-comm-refetched-from-pubmed Repository Root: svn+ssh://pitonas.ibt.lt/home/xray/svn-repositories/xyz-extraction Repository UUID: 9acf3947-1f02-0410-ae2a-984b57ad209b Revision: 2871 Node Kind: directory Schedule: normal Last Changed Author: saulius Last Changed Rev: 2871 Last Changed Date: 2014-03-15 11:18:46 +0200 (Sat, 15 Mar 2014) Three conflicts in files 10/81/7108128.cif, 10/81/7108130.cif and 10/99/7109903.cif were resolved manually.	7105367.cif
35909	2012-02-26	cif/7/: reorganising range 7 into a prefix-directory tree.	7105367.cif
1086	2010-04-11	cif/2/, cif/7/ Depositing CIFs from Acta-Cryst-C-2010_03/, Acta-Cryst-E-2010_03/ and Chem-Comm-2010_12-16/ processing directories.	7105367.cif