#------------------------------------------------------------------------------ #$Date: 2014-07-12 11:06:43 +0300 (Sat, 12 Jul 2014) $ #$Revision: 120115 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/40/9014016.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_9014016 loop_ _publ_author_name 'Yamanaka, T.' 'Ogata, K.' _publ_section_title ; Structure refinement of GeO2 polymorphs at high pressures and temperatures by energy-dispersive spectra of powder diffraction Note: P = 1.69 GPa T = 293 K Note: quartz structure ; _journal_name_full 'Journal of Applied Crystallography' _journal_page_first 111 _journal_page_last 118 _journal_volume 24 _journal_year 1991 _chemical_compound_source Synthetic _chemical_formula_sum 'Ge O2' _symmetry_space_group_name_H-M 'P 32 2 1' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_length_a 4.9113 _cell_length_b 4.9113 _cell_length_c 5.6099 _cell_volume 117.187 _database_code_amcsd 0019057 _exptl_crystal_density_diffrn 4.447 _cod_database_code 9014016 _amcsd_formula_title GeO2 loop_ _space_group_symop_operation_xyz x,y,z y,x,2/3-z -y,x-y,2/3+z -x,-x+y,1/3-z -x+y,-x,1/3+z x-y,-y,-z loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ge 0.45070 0.00000 0.00000 0.00760 O 0.39160 0.30590 0.08770 0.01646 _journal_paper_doi 10.1107/S0021889890011153