Crystallography Open Database

Information card for entry 7108542

Preview

Coordinates	7108542.cif
Original paper (by DOI)	HTML

Structure parameters

Formula	C11 H14 F2 N2 O4
Calculated formula	C11 H14 F2 N2 O4
SMILES	FC1(F)[C@@H](N2C(=O)NC(=O)C(=C2)C)[C@@H]([C@H]1CO)CO.FC1(F)[C@H](N2C(=O)NC(=O)C(=C2)C)[C@H]([C@@H]1CO)CO
Title of publication	Tuning efficiency of the 4-exo-trig cyclization by the electronic effect: ring closure of 3,3-difluoro-4-pentenyl carbon radicals and synthesis of a gem-difluorocyclobutane nucleoside
Authors of publication	Hiroki Kumamoto; Sachiko Kawahigashi; Hiromi Wakabayashi; Tomohiko Nakano; Tomoko Miyaike; Yasuyuki Kitagawa; Hiroshi Abe; Mika Ito; Kazuhiro Haraguchi; Jan Balzarini; Masanori Baba; Hiromichi Tanaka
Journal of publication	Chem.Commun.
Year of publication	2012
Journal volume	48
Pages of publication	10993
a	19.14 ± 0.03 Å
b	6.288 ± 0.009 Å
c	19.81 ± 0.03 Å
α	90°
β	91.934 ± 0.015°
γ	90°
Cell volume	2383 ± 6 Å³
Cell temperature	93 K
Ambient diffraction temperature	93 K
Number of distinct elements	5
Space group number	15
Hermann-Mauguin space group symbol	C 1 2/c 1
Hall space group symbol	-C 2yc
Residual factor for significantly intense reflections	0.0473
Weighted residual factors for all reflections included in the refinement	0.1596
Goodness-of-fit parameter for all reflections included in the refinement	1.144
Diffraction radiation wavelength	0.71075 Å
Diffraction radiation type	MoKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
180189 (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 7/10/85.	7108542.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.	7108542.cif
68095	2012-10-17	cif/ Adding structures of 7108542 via cif-deposit CGI script.	7108542.cif