Brownmillerite Ca2Co2O5: Synthesis, Stability, and Re-entrant Single Crystal to Single Crystal Structural Transitions
Zhang, Junjie; Zheng, Hong; Malliakas, Christos D.; Allred, Jared M.; Ren, Yang; Li, Qing’an; Han, Tian-Heng; Mitchell, J.F.; Chemistry of Materials 26 (2014) 7172–; doi:10.1021/cm503873x

data_4002084
_publ_section_title
;
 Brownmillerite Ca2Co2O5: Synthesis, Stability, and Re-entrant Single
 Crystal to Single Crystal Structural Transitions
;
_journal_issue                   24
_journal_name_full               'Chemistry of Materials'
_journal_page_first              7172
_journal_paper_doi               10.1021/cm503873x
_journal_volume                  26
_journal_year                    2014
_chemical_formula_moiety         'Ca2 Co2 O5'
_chemical_formula_sum            'Ca2 Co2 O5'
_chemical_formula_weight         278.02
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           57
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2bc 2c'
_symmetry_space_group_name_H-M   'P c m b'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   5.28960(10)
_cell_length_b                   14.9240(2)
_cell_length_c                   10.9547(2)
_cell_measurement_reflns_used    4262
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      31.49
_cell_measurement_theta_min      2.73
_cell_volume                     864.79(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      300(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0359
_diffrn_reflns_av_sigmaI/netI    0.0211
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11175
_diffrn_reflns_theta_full        31.54
_diffrn_reflns_theta_max         31.54
_diffrn_reflns_theta_min         2.73
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    9.956
_exptl_absorpt_correction_T_max  0.4942
_exptl_absorpt_correction_T_min  0.4144
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2003)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    4.271
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1072
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.735
_refine_diff_density_min         -0.936
_refine_diff_density_rms         0.167
_refine_ls_extinction_coef       0.00197(19)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_matrix_type           full
_refine_ls_number_parameters     91
_refine_ls_number_reflns         1488
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0374
_refine_ls_R_factor_gt           0.0221
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0403P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0620
_refine_ls_wR_factor_ref         0.0703
_reflns_number_gt                950
_reflns_number_total             1488
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm503873x_si_003.cif
_cod_data_source_block           xx
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/COD-crude-data--automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2935 2014-11-11 08:27:57Z andrius 

 Adding full bibliography for 4002083--4002086.cif.
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_cod_original_sg_symbol_H-M      'Pcmb '
_cod_database_code               4002084