Crystal structure of bis(ethyltriphenylphos-phonium) tetrabromidocuprate(II), (C20H20P)2[CuBr4]
Hosten, Eric C.; Betz, Richard; Zeitschrift für Kristallographie - New Crystal Structures 231 (2016) 355–359; doi:10.1515/ncrs-2014-9028

data_8106874
_publ_section_title
;
 Crystal structure of bis(ethyltriphenylphos-phonium)
 tetrabromidocuprate(II), (C20H20P)2[CuBr4]
;
_journal_issue                   2
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              355
_journal_page_last               359
_journal_paper_doi               10.1515/ncrs-2014-9028
_journal_volume                  231
_journal_year                    2016
_chemical_formula_moiety         '2(C20 H20 P), Br4 Cu'
_chemical_formula_sum            'C40 H40 Br4 Cu P2'
_chemical_formula_weight         965.84
_chemical_name_common
;
bis(ethyltriphenylphosphonium) tetrabromidocuprate(II)
;
_chemical_name_systematic
;
bis(ethyltriphenylphosphonium) tetrabromidocuprate(II)
;
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 91.016(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   24.6469(9)
_cell_length_b                   12.4301(5)
_cell_length_c                   25.5369(9)
_cell_measurement_reflns_used    9986
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      24.26
_cell_measurement_theta_min      2.28
_cell_volume                     7822.3(5)
_computing_cell_refinement       'SAINT (Bruker, 2010)'
_computing_data_collection       'APEX2 (Bruker, 2010)'
_computing_data_reduction        SAINT
_computing_molecular_graphics
'ORTEPIII (Farrugia, 2012), Mercury (Macrae et al., 2008)'
_computing_publication_material  'SHELXL-97, PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_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     0.71069
_diffrn_reflns_av_unetI/netI     0.0954
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            19458
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.363
_diffrn_reflns_theta_min         1.138
_exptl_absorpt_coefficient_mu    4.754
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7570
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;                                                              
SADABS (Bruker, 2008)                                          
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.640
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             3832
_exptl_crystal_size_max          0.304
_exptl_crystal_size_mid          0.258
_exptl_crystal_size_min          0.048
_refine_diff_density_max         1.349
_refine_diff_density_min         -1.120
_refine_diff_density_rms         0.169
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     852
_refine_ls_number_reflns         19458
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.1326
_refine_ls_R_factor_gt           0.0733
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0388P)^2^+65.2926P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1603
_refine_ls_wR_factor_ref         0.1806
_reflns_number_gt                11882
_reflns_number_total             19458
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            suppl_ncrs-2014-9028_suppl.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 8738 2021-04-28 16:35:53Z antanas 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               8106874
_shelx_hkl_checksum              97566