#------------------------------------------------------------------------------ #$Date: 2021-04-22 13:57:34 +0300 (Thu, 22 Apr 2021) $ #$Revision: 264409 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/20/9012005.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9012005 loop_ _publ_author_name 'Straumanis, M. E.' _publ_section_title ; The precision determination of lattice constants by the powder and rotation crystal methods and applications Locality: synthetic Sample: at T = 25 C ; _journal_name_full 'Journal of Applied Physics' _journal_page_first 726 _journal_page_last 734 _journal_paper_doi 10.1063/1.1698520 _journal_volume 20 _journal_year 1949 _chemical_formula_sum Sn _chemical_name_mineral Tin _space_group_IT_number 225 _symmetry_space_group_name_Hall 'I 4bw 2bw -1bw' _symmetry_space_group_name_H-M 'I 41/a m d :' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 5.83146 _cell_length_b 5.83146 _cell_length_c 3.18129 _cell_volume 108.183 _diffrn_ambient_temperature 298.15 _exptl_crystal_density_diffrn 4.000 _cod_depositor_comments ; As pointed out by Prof. Dr. Klaus-Dieter Liss from Technion - Israel Institute of Technology in his 2018-12-07 07:39 report, the cell constants in this entry were actually recorded in kX units, not in \%A units as the CIF standard mandates. To make data uniform and to match the definition of the CIF _cell_length_* data items, all cell constants were multiplied by the 1.00202 coefficient (taken from Wood, E. A. The Conversion Factor for kX Units to Angstr\"om Units Journal of Applied Physics, AIP Publishing, 1947, 18, 929 DOI: 10.1063/1.1697570, https://doi.org/10.1063/1.1697570). In addition, in the original entry the _cell_length_c was apparently taken from the wrong column, under (incorrect) assumption of the cubic crystal form. Both _cell_length_c and the spacegroup were corrected as well. The space group was updated after consulting other COD entries with close cell constants, in particular COD 7222460 (http://www.crystallography.net/cod/7222460.html). Saulius Gra\