Crystallography Open Database

Information card for entry 7150047

Preview

Coordinates	7150047.cif
Original paper (by DOI)	HTML

Structure parameters

Common name	7
Chemical name	2,2'-biquinazoline
Formula	C16 H10 N4
Calculated formula	C16 H10 N4
SMILES	c1(nc2ccccc2cn1)c1nc2ccccc2cn1
Title of publication	Solid state conformations of symmetrical aromatic biheterocycles: an X-ray crystallographic investigation.
Authors of publication	Fitchett, Christopher M.; Richardson, Chris; Steel, Peter J.
Journal of publication	Organic & biomolecular chemistry
Year of publication	2005
Journal volume	3
Journal issue	3
Pages of publication	498 - 502
a	8.557 ± 0.004 Å
b	6.33 ± 0.003 Å
c	11.841 ± 0.005 Å
α	90°
β	106.689 ± 0.006°
γ	90°
Cell volume	614.4 ± 0.5 Å³
Cell temperature	170 ± 2 K
Ambient diffraction temperature	170 ± 2 K
Number of distinct elements	3
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	0.0802
Residual factor for significantly intense reflections	0.0547
Weighted residual factors for significantly intense reflections	0.1184
Weighted residual factors for all reflections included in the refinement	0.1328
Goodness-of-fit parameter for all reflections included in the refinement	1.026
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
180286 (current)	2016-03-26	cif/7/15/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 7/15/00.	7150047.cif
120443	2014-07-15	Adding 17924 DOIs guessed from source file names.	7150047.cif
35909	2012-02-26	cif/7/: reorganising range 7 into a prefix-directory tree.	7150047.cif
11752	2011-02-18	cif/7/ Redepositing RSC CIFs that were formally processed with an old version of cif_fix_values script.	7150047.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.	7150047.cif
1650	2010-10-21	cif/{1,7}/ Restoring CIF headers in the recently redeposited RSC-originating CIFs.	7150047.cif
1648	2010-10-21	cif/7/, cif/1/ Redepositing files from the 2005-RSC processing that were unambiguously identified by the cod_numbers program. Two files in COD were found truncated, and one has coordinates published in a journal that differ slightly from the COD entry; also the journal name is different -- most probably, the structure was update during publication. I assume however that the currently deposited structures are better description of the publisted research results, and thus overwrite the differing files. The command was: ( set -x; pwd; for i in */outputs/numbers.lst; \ do ( cd $(dirname $(dirname $i)); \ awk '{if($(NF-1)==1)print $NF,$(NF-2)}' outputs/numbers.lst \ \| while read -a line; \ do \ L=$(echo ${line[1]} \ \| awk '{print substr($0,0,1)}'); \ NEW=${line[0]}; \ OLD=~/struct/cod/cif/$L/${line[1]}.cif; \ cif_filter --renumber --start-data ${line[1]} \ $NEW --add-cif-header $OLD > $OLD; \ done ) \ done ) \ 2>&1 \| tee ~/struct/cod/cif/redeposit-2005-RSC.log File 7/7150115.cif was in addition corrected manually (some s.d. values table were specified in an incorrect format).	7150047.cif
966	2010-01-30	cif/ Adding _cod_database_code tags to all COD entries. Adding tag description to the cif_cod.dic dictionary so that COD entries can be validated.	7150047.cif
853	2009-11-16	cif/ Reconstructing spacegroup designators from the symmetry operators were possible. The comands used can be found in the log file reformat-spacegroups-2009.11.14.log committed with the current revision. Only lines that contained spacegroup designators were changed, and all files pass vcif test after the conversion.	7150047.cif
19	2008-01-26	Changing all end-of-line codes from DOS style to UNIX style in all COD CIF files, for more convenient processing: In the cod/cif/ directory: ff \*.cif \| xargs perl -i -pe 's/\r\n/\n/'	7150047.cif
14	2008-01-14	Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files.	7150047.cif
13	2008-01-13	Setting the svn:keywords property to "Author Date Revision URL Id" for all CIF files in the cod/cif directory.	7150047.cif
1	2007-11-30	Adding all .cif files from the COD, downloaded in a Cod.zip file on 2007.02.07 (and the same Cod.zip is downloadable today, on 2007.11.29)	7150047.cif