Crystallography Open Database

Information card for entry 7105484

Preview

Coordinates	7105484.cif
Original paper (by DOI)	HTML

Structure parameters

Formula	C18 H8 N4 O2
Calculated formula	C18 H8 N4 O2
SMILES	C1(=O)c2nc3ccccc3nc2C(=O)c2c1nc1c(cccc1)n2
Title of publication	N-heteroquinones: quadruple weak hydrogen bonds and n-channel transistors.
Authors of publication	Tang, Qin; Liang, Zhixiong; Liu, Jing; Xu, Jianbin; Miao, Qian
Journal of publication	Chemical communications (Cambridge, England)
Year of publication	2010
Journal volume	46
Journal issue	17
Pages of publication	2977 - 2979
a	3.8926 ± 0.0002 Å
b	9.0707 ± 0.0004 Å
c	18.4339 ± 0.001 Å
α	90°
β	92.332 ± 0.004°
γ	90°
Cell volume	650.34 ± 0.06 Å³
Cell temperature	296 ± 2 K
Ambient diffraction temperature	296 ± 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	0.0561
Residual factor for significantly intense reflections	0.0467
Weighted residual factors for significantly intense reflections	0.1408
Weighted residual factors for all reflections included in the refinement	0.1704
Goodness-of-fit parameter for all reflections included in the refinement	1.154
Diffraction radiation wavelength	1.54178 Å
Diffraction radiation type	CuKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
180158 (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 7/10/54.	7105484.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.	7105484.cif
35909	2012-02-26	cif/7/: reorganising range 7 into a prefix-directory tree.	7105484.cif
5312	2011-01-03	cif/ Adding files, updated with the 'cif_fix_enum' program and the cif_core.dic dictionary. The enumerator values were fixed, mostly incorrect case, but also some values that had extra underscores, dashes or spaces. Unfortunately, 22 had non-ASCII characters with the 8-th bit set, and these got incorrectly interpreted as latin1 characters and converted to their UTF8 equivalents by Perl. To fix the structures, however, they need to be redeposited from the original files with the new CIFParser/cif_filter version.	7105484.cif
1107	2010-04-18	cif/7/ Depositing crystal data extracted from Chem-Comm-2010_17/.	7105484.cif