Crystallography Open Database

Information card for entry 2003187

2003186 << 2003187 >> 2003188

Preview

Coordinates	2003187.cif
Original IUCr paper	HTML

Structure parameters

Formula	C8 H15 N3 O3
Calculated formula	C8 H15 N3 O3
SMILES	CC(=O)N[C@H](C(=O)N[C@H](C(=O)N)C)C
Title of publication	N-Acetylglycyl-L-alaninamide and N-Acetyl-L-alanyl-L-alaninamide
Authors of publication	Puliti, Raffaella; Mattia, Carlo Andrea
Journal of publication	Acta Crystallographica, Section C: Crystal Structure Communications
Year of publication	1995
Journal volume	51
Journal issue	2
Pages of publication	336 - 339
a	5.5005 ± 0.0004 Å
b	9.429 ± 0.001 Å
c	20.712 ± 0.002 Å
α	90°
β	90°
γ	90°
Cell volume	1074.2 ± 0.3 Å³
Cell temperature	293 K
Number of distinct elements	4
Space group number	19
Hermann-Mauguin space group symbol	P 21 21 21
Hall space group symbol	P 2ac 2ab
Residual factor for significantly intense reflections	0.036
Weighted residual factors for significantly intense reflections	0.04
Goodness-of-fit parameter for significantly intense reflections	0.97
Diffraction radiation wavelength	1.54056 Å
Diffraction radiation type	CuKα
Has coordinates	Yes
Has disorder	No
Has F_obs	No

Version history

Revision	Date	Message	Files
218377 (current)	2019-09-17	cif/2/ Marked entries 2010431-2010432 as duplicates of entries 2003186-2003187. Updated entries with the information that was exclusive to their duplicates.	2003187.cif
218376	2019-09-17	cif/2/ Updated bibliographical information in entries 2003186-2003187, 2010431-2010432.	2003187.cif
200787	2017-09-12	cif/ Updating bibliography in entries 2003183, 2003184, 2003185, 2003187, 2003189, 2003192, 2003193, 2003194, 2003195, 2003196, 2003197, 2003199, 2003200, 2003203, 2003204, 2003208, 2003209, 2003210, 2003212, 2003214, 2003216, 2003218.	2003187.cif
130149	2015-01-27	cod/ (saulius@kolibris) Deriving Hall space group symbols for 12003 CIFs using the 'cif_filter --estimate-spacegroup' command.	2003187.cif
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2003187.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.	2003187.cif
846	2009-11-14	cif/ Fixing _journal_volume values that had series letters prepended to them. Now the series letters are appended to the _journal_name_full, if needed, and the _journal_volume is purely numeric. To mimimise textual changes to CIFs this was done in several stages. First of all, a list of _journal_volume was compiled from the COD CIF collection: bash -xc 'find ? -name \*.cif \ \| xargs cif_values \ --file \ --tag _journal_volume' \ >& cod-journal-volumes-`-date`.log & giving us a cod-journal-volumes-2009.11.13.log file (committed for reference as well). Then a list of volume names with letters was extracted and most of them transformed automatically into a correct form: awk '$3~/^[A-Z][0-9]/' cod-journal-volumes-2009.11.13.log \ \| awk '{print $1}' \ \| xargs -n1 -iI \ bash -c 'echo === I ===;\ awk "/^#/,/^data_/{print}/^data_/{exit}" I > tmp-$$; \ cif_adjust_journal_name_volume I \ \| grep -E "_journal_name_full\|_journal_volume" >> tmp-$$; \ awk "/^data_/,/\$eof/" I \ \| grep -vE "^(data_\|_journal_name_full\|_journal_volume)" >> tmp-$$;\ mv -v tmp-$$ I' Note that this procedure assumes that all tags are at the beginning of the line, each value follows its tag on the same line, and there is only one tag per line. This procedure is not suitable for general CIFs, but fortunately, only very few CIFs in COD do not conform these rules. After the automatic conversion, a syntax check was run: svn st ? \ \| awk '{print $NF}' \ \| xargs -n1 -iI sh -c 'echo -n I"\r"; vcif -l 2048 I \|\| echo "!!! I !!!\n"' Entries that were found to have errors (very few, less than 10) were reverted and fixed manually. The entries that had letters embedded into them were grepped separately: awk '$3~/[A-Z][0-9]/' cod-journal-volumes-2009.11.13.log \ \| awk '$3~/^[^A-Z]/' and fixed manually. After all fixes, the previous 'vcif' test was rerun, yielding no syntax errors, and in addition a 'cif_filter' roundtrip test was run: svn st ? \ \| awk '{print $NF}' \ \| xargs -n1 -iI \ bash -c ' \ echo -en I "\r"; \ diff \ <(cif_filter I >& /dev/null) \ <(cif_filter I \| cif_filter >& /dev/null) \ \|\| echo "!!! I !!!\n"' This last test discovered one misspelled '_journal_yrae' tag in the 2/2003193.cif entry that was fixed by hand.	2003187.cif
20	2008-01-26	Removing white space at the end of all lines from all COD CIF files: in the cod/cif/ directory: ff \*.cif \| xargs perl -i -pe 's/\s+\n$/\n/'	2003187.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/'	2003187.cif
14	2008-01-14	Appending a header with SVN keywords, COD URL and copying policy to all COD CIF files.	2003187.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.	2003187.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)	2003187.cif