Crystallography Open Database

Information card for entry 7106286

Preview

Coordinates	7106286.cif
Original paper (by DOI)	HTML
External links	ChemSpider

Structure parameters

Formula	C21 H20 O6
Calculated formula	C21 H20 O6
SMILES	Oc1c(OC)cc(C=CC(=O)/C=C(O)\C=C\c2ccc(O)c(OC)c2)cc1
Title of publication	New polymorphs of curcumin
Authors of publication	Palash Sanphui; N. Rajesh Goud; U. B. Rao Khandavilli; Sreenu Bhanoth; Ashwini Nangia
Journal of publication	Chem.Commun.
Year of publication	2011
Journal volume	47
Pages of publication	5013
a	12.5676 ± 0.0011 Å
b	7.0425 ± 0.0006 Å
c	19.9582 ± 0.0018 Å
α	90°
β	94.987 ± 0.001°
γ	90°
Cell volume	1759.8 ± 0.3 Å³
Cell temperature	100 ± 2 K
Ambient diffraction temperature	100 ± 2 K
Number of distinct elements	3
Space group number	13
Hermann-Mauguin space group symbol	P 1 2/n 1
Hall space group symbol	-P 2yac
Residual factor for all reflections	0.0483
Residual factor for significantly intense reflections	0.0435
Weighted residual factors for significantly intense reflections	0.1127
Weighted residual factors for all reflections included in the refinement	0.1163
Goodness-of-fit parameter for all reflections included in the refinement	1.054
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
202017 (current)	2017-10-14	cif/ Marking COD entries in range 7 that are known to be related to ChemSpider entries using the _cod_related_entry data loop.	7106286.cif
180166	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 7/10/62.	7106286.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.	7106286.cif
35909	2012-02-26	cif/7/: reorganising range 7 into a prefix-directory tree.	7106286.cif
18085	2011-04-21	../uploads/cif-deposit/cod/cif Adding structures of 7106286, 7106287, 7106288 via cif-deposit CGI script.	7106286.cif