Structural diversity in the alkaline earth metal compounds of tetra and pentacyanocyclopentadienide.
Nimax, Patrick R.; Sünkel, Karlheinz; Dalton transactions (Cambridge, England : 2003) 47 (2018) 409–417; doi:10.1039/c7dt03862c

data_7044903
_publ_section_title
;
 Structural diversity in the alkaline earth metal compounds of tetra and
 pentacyanocyclopentadienide.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              409
_journal_page_last               417
_journal_paper_doi               10.1039/c7dt03862c
_journal_volume                  47
_journal_year                    2018
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C18 H8 Ba N8 O3'
_chemical_formula_sum            'C18 H8 Ba N8 O3'
_chemical_formula_weight         521.66
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2ab'
_space_group_name_H-M_alt        'P b n 21'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      33
_symmetry_space_group_name_Hall  'P 2c -2ab'
_symmetry_space_group_name_H-M   'P b n 21'
_atom_sites_solution_hydrogens   difmap
_audit_creation_date             2017-08-04T08:38:11-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2017-08-17 deposited with the CCDC.
2017-11-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.8320(2)
_cell_length_b                   13.8221(4)
_cell_length_c                   21.1263(5)
_cell_measurement_reflns_used    9798
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.4761
_cell_measurement_theta_min      2.9474
_cell_volume                     1995.01(9)
_computing_cell_refinement       'APEX2 v2012.4-3 (Bruker AXS)'
_computing_data_collection       'Bruker Instrument Service v3.0.21'
_computing_data_reduction        'SAINT V8.18C (Bruker AXS Inc., 2011)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'D8 Venture'
_diffrn_measurement_method       'mix of omega and phi scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0361
_diffrn_reflns_av_unetI/netI     0.0208
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            36043
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.476
_diffrn_reflns_theta_min         3.101
_diffrn_source                   'rotating anode generator'
_diffrn_source_type              'Bruker TXS'
_exptl_absorpt_coefficient_mu    2.028
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6851
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 - Bruker AXS area detector scaling and absorption correction
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.737
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.419
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.532(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     299
_refine_ls_number_reflns         4557
_refine_ls_number_restraints     16
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0175
_refine_ls_R_factor_gt           0.0154
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0150P)^2^+0.8519P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0352
_refine_ls_wR_factor_ref         0.0363
_reflns_Friedel_coverage         0.948
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     1
_reflns_number_gt                4351
_reflns_number_total             4557
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7dt03862c2.cif
_cod_data_source_block           vv334
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7044901--7044905.cif.
;
_cod_original_sg_symbol_H-M      'P bn21'
_cod_database_code               7044903