Crystallography Open Database

Information card for entry 2212176

Preview

Coordinates	2212176.cif
Original IUCr paper	HTML
External links	AMCSD

Structure parameters

Common name	eakerite
Chemical name	dicalcium tin dialuminosilicate dihydroxide dihydrate
Formula	Al2 Ca2 H6 O22 Si6 Sn
Calculated formula	Al2 Ca2 H6 O22 Si6 Sn
Title of publication	Reinvestigation of eakerite, Ca~2~SnAl~2~Si~6~O~18~(OH)~2~·2H~2~O: H-atom positions by single-crystal X-ray diffraction and correlation with Raman spectroscopic data
Authors of publication	Uchida, Hinako; Downs, Robert T.; Thompson, Richard M.
Journal of publication	Acta Crystallographica Section E
Year of publication	2007
Journal volume	63
Journal issue	2
Pages of publication	i47 - i49
a	15.8202 ± 0.0005 Å
b	7.6963 ± 0.0003 Å
c	7.4449 ± 0.0003 Å
α	90°
β	101.293 ± 0.002°
γ	90°
Cell volume	888.92 ± 0.06 Å³
Cell temperature	293 ± 2 K
Ambient diffraction temperature	295 ± 2 K
Number of distinct elements	6
Space group number	14
Hermann-Mauguin space group symbol	P 1 21/a 1
Hall space group symbol	-P 2yab
Residual factor for all reflections	0.0358
Residual factor for significantly intense reflections	0.0267
Weighted residual factors for significantly intense reflections	0.0625
Weighted residual factors for all reflections included in the refinement	0.0656
Goodness-of-fit parameter for all reflections included in the refinement	1.05
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
282541 (current)	2023-04-10	cif/2/21/21/ Marked entry 2212176 as being related to AMCSD entry 0010472. Removed the '_amcsd_database_code' data item since it had an outdated value that is no longer relevant.	2212176.cif
176787	2016-02-20	cif/2/ (antanas@kurmis) Replacing _[local]_cod_* tags with their equivalents from the COD CIF dictionary in multiple entries in subrange 2/21.	2212176.cif
91933	2013-12-28	cif/ (saulius@koala.ibt.lt) Adding DOIs that could be assigned unambiguously to the range 2x CIFs.	2212176.cif
32112	2012-02-03	cif/: committing an update of 45+ thous files, with information appended from the originals.	2212176.cif
26848	2011-09-28	cif/2/, hkl/2/, html/ Reorganising CIFs of the range 2* into the "prefix-directory" tree.	2212176.cif
26029	2011-09-17	cif/2/ Reverting changes of revision 25271: ( cd cif/2/; svn merge -r25271:25270 . ) The problem was that the reprocessed files from IUCr, although were more complete, "resurrected" data errors that were corrected in the previous recisions. The additional data that have been extracted during the reprocessing will have to be merged without overwriting the existing values in COD files, except some explicit and controlled cases (such as publication titles and chemical names).	2212176.cif
25271	2011-09-10	cif/2/ Adding reporocessed IUCr CIFs for the years 1980-2010. The CIFs now contain more complete bibliography, substance names, correctly unfolded text fields (using the CIF line unfolding protocol), explicitely set cell angles, and _cod_data_source_block fields.	2212176.cif
1212	2010-06-10	cif/ Inserting AMCSD numbers for the automatically recognised series 1, 2, 4, 5 and 8 CIFs.	2212176.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.	2212176.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.	2212176.cif
326	2008-04-03	Adding all Acta Cryst. B, C, and E missing retrospective CIF files up to 2008 February, generated from the files that were automatically downloaded from the IUCr site.	2212176.cif