#------------------------------------------------------------------------------ #$Date: 2013-05-09 16:53:25 +0300 (Thu, 09 May 2013) $ #$Revision: 86000 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/01/55/9015592.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_9015592 loop_ _publ_author_name 'Atencio, D.' 'Roberts, A. C.' 'Cooper, M. A.' 'Menezes, L. A. D.' 'Coutinho, J. M. V.' 'Stirling, J. A. R.' 'Venance, K. E.' 'Ball, N. A.' 'Moffatt, E.' 'Chaves, M. L. S. C.' 'Brandao, P. R. G.' 'Romano, A. W.' _publ_section_title ; Carlosbarbosaite, ideally (UO2)2Nb2O6(OH)2*2H2O, a new hydrated uranyl niobate mineral with tunnels from Jaguaracu, Minas Gerais, Brazil: description and crystal structure ; _journal_name_full 'Mineralogical Magazine' _journal_page_first 75 _journal_page_last 90 _journal_volume 76 _journal_year 2012 _chemical_compound_source 'Jaguaracu, Minas Gerais, Brazil' _chemical_formula_sum 'Al0.1 Ca0.28 Ce0.02 Fe0.1 H6 Nb0.8 Nd0.02 O14 Si0.26 Ta0.52 Ti0.22 U1.44' _chemical_name_mineral Carlosbarbosaite _space_group_IT_number 63 _symmetry_space_group_name_Hall '-C 2c 2' _symmetry_space_group_name_H-M 'C m c m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 14.150 _cell_length_b 10.395 _cell_length_c 7.529 _cell_volume 1107.435 _database_code_amcsd 0018664 _exptl_crystal_density_diffrn 4.704 _[local]_cod_chemical_formula_sum_orig 'U1.44 (Nb.8 Ta.52 Si.26 Ti.22 Al.1 Fe.1) Ca.28 Nd.02 Ce.02 O14 H6' _cod_database_code 9015592 loop_ _space_group_symop_operation_xyz x,y,z 1/2+x,1/2+y,z x,-y,1/2+z 1/2+x,1/2-y,1/2+z -x,y,1/2-z 1/2-x,1/2+y,1/2-z -x,y,z 1/2-x,1/2+y,z x,-y,-z 1/2+x,1/2-y,-z x,y,1/2-z 1/2+x,1/2+y,1/2-z -x,-y,1/2+z 1/2-x,1/2-y,1/2+z -x,-y,-z 1/2-x,1/2-y,-z loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 U 0.02790 0.05070 0.02440 -0.01150 0.00000 0.00000 Nb 0.01330 0.04430 0.02670 0.00000 0.00000 -0.00010 Ta 0.01330 0.04430 0.02670 0.00000 0.00000 -0.00010 Si 0.01330 0.04430 0.02670 0.00000 0.00000 -0.00010 Ti 0.01330 0.04430 0.02670 0.00000 0.00000 -0.00010 Al 0.01330 0.04430 0.02670 0.00000 0.00000 -0.00010 Fe 0.01330 0.04430 0.02670 0.00000 0.00000 -0.00010 Ca 0.05500 0.05100 0.06600 0.00000 0.00000 0.00000 Nd 0.05500 0.05100 0.06600 0.00000 0.00000 0.00000 Ce 0.05500 0.05100 0.06600 0.00000 0.00000 0.00000 O(1) 0.09700 0.06200 0.02300 -0.04700 0.00000 0.00000 O(2) 0.04800 0.05800 0.03500 0.00000 0.00000 0.00000 O(3) 0.02600 0.05200 0.02700 -0.01500 -0.00300 0.00800 O(4) 0.02200 0.04200 0.01500 -0.00100 0.00000 0.00000 O-H 0.02700 0.05100 0.02200 0.00000 0.00000 0.00300 Wat 0.12000 0.10000 0.07500 0.00000 0.00000 -0.00100 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv U 0.26634 0.27203 0.25000 0.72000 0.03430 Nb 0.38296 0.50000 0.00000 0.40000 0.02810 Ta 0.38296 0.50000 0.00000 0.26000 0.02810 Si 0.38296 0.50000 0.00000 0.13000 0.02810 Ti 0.38296 0.50000 0.00000 0.11000 0.02810 Al 0.38296 0.50000 0.00000 0.05000 0.02810 Fe 0.38296 0.50000 0.00000 0.05000 0.02810 Ca 0.50000 0.01270 0.25000 0.28000 0.05700 Nd 0.50000 0.01270 0.25000 0.02000 0.05700 Ce 0.50000 0.01270 0.25000 0.02000 0.05700 O(1) 0.36220 0.17090 0.25000 1.00000 0.06100 O(2) 0.16330 0.37800 0.25000 1.00000 0.04700 O(3) 0.30200 0.35710 -0.03980 1.00000 0.03500 O(4) 0.37580 0.44710 0.25000 1.00000 0.02600 O-H 0.50000 0.61060 0.05470 1.00000 0.03300 Wat 0.50000 0.12600 -0.02200 1.00000 0.09600