Crystallography Open Database

Information card for entry 7108727

Preview

Coordinates	7108727.cif
Original paper (by DOI)	HTML
External links	PubChem

Structure parameters

Formula	C24 H19 Br O2
Calculated formula	C24 H19 Br O2
SMILES	Brc1ccc(C[C@@H]2C(=O)OC(=C[C@@H]2c2ccccc2)c2ccccc2)cc1
Title of publication	Controlled beta-protonation and [4+2] cycloaddition of enals and chalcones via N-heterocyclic carbene/acid catalysis: toward substrate independent reaction control
Authors of publication	Zhenqian Fu; Hui Sun; Shaojin Chen; Bhoopendra Tiwari; Guohui Li; Yonggui Robin Chi
Journal of publication	Chem.Commun.
Year of publication	2013
Journal volume	49
Pages of publication	261
a	5.7877 ± 0.0006 Å
b	15.8468 ± 0.0017 Å
c	20.507 ± 0.002 Å
α	90°
β	90°
γ	90°
Cell volume	1880.8 ± 0.3 Å³
Cell temperature	103 ± 2 K
Ambient diffraction temperature	103 ± 2 K
Number of distinct elements	4
Space group number	19
Hermann-Mauguin space group symbol	P 21 21 21
Hall space group symbol	P 2ac 2ab
Residual factor for all reflections	0.07
Residual factor for significantly intense reflections	0.0479
Weighted residual factors for significantly intense reflections	0.1028
Weighted residual factors for all reflections included in the refinement	0.143
Goodness-of-fit parameter for all reflections included in the refinement	1.075
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
301853 (current)	2025-08-22	Add cross-references to PubChem compounds in COD range 7/10/ Each referenced PubChem compound corresponds to the full crystal structure.	7108727.cif
180191	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 7/10/87.	7108727.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.	7108727.cif
69343	2012-12-12	cif/ Adding structures of 7108727 via cif-deposit CGI script.	7108727.cif