Crystallography Open Database

Information card for entry 7108856

Preview

Coordinates	7108856.cif
Original paper (by DOI)	HTML
External links	PubChem

Structure parameters

Formula	C25 H37 Br N2 O6 Si
Calculated formula	C25 H37 Br N2 O6 Si
SMILES	Brc1c(cc(cc1)N1[C@H]([C@@H]2CCCO[C@@]32[C@]1(CCC3)O[Si](C)(C)C(C)(C)C)C(=O)OCC)N(=O)=O.Brc1c(cc(cc1)N1[C@@H]([C@H]2CCCO[C@]32[C@@]1(CCC3)O[Si](C)(C)C(C)(C)C)C(=O)OCC)N(=O)=O
Title of publication	Catalytic intermolecular carbon electrophile induced semipinacol rearrangement
Authors of publication	Qing-Wei Zhang; Xiao-Bo Zhang; Bao-Sheng Li; Kai Xiang; Fu-Min Zhang; Shao-Hua Wang; Yong-Qiang Tu
Journal of publication	Chemical communications (Cambridge, England)
Year of publication	2013
Journal volume	49
Journal issue	16
Pages of publication	1648 - 1650
a	8.055 ± 0.009 Å
b	17.91 ± 0.02 Å
c	20.02 ± 0.02 Å
α	75.487 ± 0.011°
β	79.846 ± 0.012°
γ	81.246 ± 0.011°
Cell volume	2734 ± 5 Å³
Cell temperature	296 ± 2 K
Ambient diffraction temperature	296 ± 2 K
Number of distinct elements	6
Space group number	2
Hermann-Mauguin space group symbol	P -1
Hall space group symbol	-P 1
Residual factor for all reflections	0.1507
Residual factor for significantly intense reflections	0.0698
Weighted residual factors for significantly intense reflections	0.1858
Weighted residual factors for all reflections included in the refinement	0.2174
Goodness-of-fit parameter for all reflections included in the refinement	1.057
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.	7108856.cif
180192	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 7/10/88.	7108856.cif
111965	2014-04-28	cif/ (saulius@koala.ibt.lt) Merging information from the recently deposited Chem. Comm. duplicates into the original files, and marking the new files as duplicated. The reason why the duplicates were overlooked was the changed publication year, and missing DOIs in the older entries. Since now DOIs are always recorded, this problem should not arise in the future. The command to update COD files was: grep '^7' cod-title-duplicates-single-year-diff.lst \ \| xargs -i sh -c ' OLDID=$(echo {}\|awk "{print \$1}"); MAIN=$(echo $OLDID \| codid2file); NEWID=$(echo {}\|awk "{print \$2}"); DUPL=$(echo $NEWID \| codid2file); echo === {} ===; sed "s/data_${NEWID}/data_${OLDID}/" ${DUPL} \ \| cif_merge \ --override-tag _journal_name_full,_journal_year \ ${MAIN} - \ \| cif_filter --add-cif-header ${MAIN} \ \| sponge ${MAIN}; echo "_cod_duplicate_entry $OLDID" >> ${DUPL}' The 'cod-title-duplicates-single-year-diff.lst' file was produced from the previous COD database version by the followinf command: mysql -NB -u cod_reader cod -e ' select d1.file, d2.file from data as d1 join data as d2 on (d1.title = d2.title or d1.title = substr(d2.title,1,length(d2.title)-1) or d2.title = substr(d1.title,1,length(d1.title)-1)) and d1.file < d2.file and d1.a = d2.a and d1.b = d2.b and d1.c = d2.c and d1.vol = d2.vol and abs(cast(d2.year as signed)-cast(d1.year as signed)) = 1 and d1.duplicateof is null and d1.duplicateof is null and d1.year >= 1970' (The last 'd1.duplicateof is null' is actually a mistake, it should have been 'd2.duplicateof is null', but the result should at this point be the same...).	7108856.cif
72861	2013-01-31	cif/ Adding structures of 7108855, 7108856 via cif-deposit CGI script.	7108856.cif