data_1517803
_publ_section_title
;
 Structure of CO2 phase II - P=25.8 GPa, T=295 K
;
_journal_name_full               'Physical Review B'
_journal_page_first              144101
_journal_volume                  89
_journal_year                    2014
_chemical_formula_iupac          CO2
_chemical_formula_sum            'C O2'
_chemical_formula_weight         44.01
_chemical_name_common            'carbon dioxide'
_chemical_name_systematic        ' ?'
_space_group_IT_number           136
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-P 4n 2n'
_symmetry_space_group_name_H-M   'P 42/m n m'
_cell_angle_alpha                90.00000
_cell_angle_beta                 90.00000
_cell_angle_gamma                90.00000
_cell_formula_units_Z            2
_cell_length_a                   3.5161(16)
_cell_length_b                   3.5161(16)
_cell_length_c                   4.1043(19)
_cell_measurement_temperature    295
_cell_volume                     50.74(4)
_computing_data_collection       fit2D
_computing_structure_refinement  FULLPROF
_diffrn_ambient_temperature      295
_diffrn_detector                 'Mar CCD'
_diffrn_detector_type            'Mar CCD'
_diffrn_measurement_device_type  'ESRF ID 27'
_diffrn_radiation_monochromator  'Si monochromator'
_diffrn_radiation_type           X-ray
_diffrn_source                   ESRF
_pd_instr_location               'ESRF ID 27'
_pd_meas_2theta_range_inc        0.012747
_pd_meas_2theta_range_max        20.67500
_pd_meas_2theta_range_min        6.76856
_pd_meas_number_of_points        1093
_pd_meas_scan_method             cont
_pd_prep_pressure                25800000
_pd_prep_temperature             295
_pd_proc_2theta_range_inc        0.012747
_pd_proc_2theta_range_max        20.6796
_pd_proc_2theta_range_min        6.7731
_pd_proc_ls_background_function  'linear interpolation'
_pd_proc_ls_pref_orient_corr     None
_pd_proc_ls_profile_function
'Thomson-Cox-Hasting * Axial divergence asymmetry'
_pd_proc_ls_prof_R_factor        0.0890
_pd_proc_ls_prof_wR_expected     1.4535
_pd_proc_ls_prof_wR_factor       0.1705
_pd_proc_wavelength              0.373800
_pd_spec_mounting                'diamond anvil cell'
_pd_spec_mount_mode              transmission
_refine_ls_number_parameters     15
_refine_ls_number_reflns         20
_refine_ls_number_restraints     0
_refine_ls_R_I_factor            1.9210
_[local]_cod_data_source_file    Datchi_CO2-II.cif
_[local]_cod_data_source_block   CO2-II
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_database_code               1517803
_pd_proc_ls_prof_cr_factor       11.2191
_pd_proc_ls_prof_cwr_factor      6.1177
_pd_proc_ls_prof_cwr_expected    52.1452
_pd_proc_ls_prof_chi2            0.0138
_pd_proc_ls_prof_echi2           0.0138
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y+1/2,x+1/2,z+1/2
x+1/2,-y+1/2,-z+1/2
-x,-y,z
y,x,-z
y+1/2,-x+1/2,z+1/2
-x+1/2,y+1/2,-z+1/2
-y,-x,-z
-x,-y,-z
y+1/2,-x+1/2,-z+1/2
-x+1/2,y+1/2,z+1/2
x,y,-z
-y,-x,z
-y+1/2,x+1/2,-z+1/2
x+1/2,-y+1/2,z+1/2
y,x,z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_occupancy
_atom_site_adp_type
_atom_site_type_symbol
C1 0.00000 0.00000 0.00000 0.05(3) 1.00000 Uiso C
O1 0.230(6) 0.230(6) 0.00000 0.007(10) 1.00000 Uiso O
loop_
_atom_type_symbol
_atom_type_scat_Cromer_Mann_a1
_atom_type_scat_Cromer_Mann_b1
_atom_type_scat_Cromer_Mann_a2
_atom_type_scat_Cromer_Mann_b2
_atom_type_scat_Cromer_Mann_a3
_atom_type_scat_Cromer_Mann_b3
_atom_type_scat_Cromer_Mann_a4
_atom_type_scat_Cromer_Mann_b4
_atom_type_scat_Cromer_Mann_c
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
c 2.31000 20.84390 1.02000 10.20750 1.58860 0.56870 0.86500 51.65120 0.21560
0.00000 0.00100
International_Tables_for_Crystallography_Vol.C(1991)_Tables_6.1.1.4_and_6.1.1.5
o 3.04850 13.27710 2.28680 5.70110 1.54630 0.32390 0.86700 32.90890 0.25080
0.00300 0.00400
International_Tables_for_Crystallography_Vol.C(1991)_Tables_6.1.1.4_and_6.1.1.5
