Tetramethylarsonium pentachlorodicuprate(II)
Murray, K.; Willett, R. D.; Acta Crystallographica Section C 49 (1993) 1739–1741; doi:10.1107/S0108270193003853

data_2001286
_publ_section_title
;
 Tetramethylarsonium pentachlorodicuprate(II)
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1739
_journal_page_last               1741
_journal_paper_doi               10.1107/S0108270193003853
_journal_volume                  49
_journal_year                    1993
_chemical_formula_moiety         'C4 H12 As1,Cl5 Cu2'
_chemical_formula_sum            'C4 H12 As Cl5 Cu2'
_chemical_formula_weight         439.4
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_type_scat_source           IntTabIV
_cell_angle_alpha                90.
_cell_angle_beta                 110.16(2)
_cell_angle_gamma                90.
_cell_formula_units_Z            4
_cell_length_a                   10.197(2)
_cell_length_b                   12.007(3)
_cell_length_c                   11.075(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    20
_cell_measurement_theta_max      38
_cell_measurement_theta_min      33
_cell_volume                     1272.9(5)
_diffrn_measurement_device       'Upgraded P2~1~'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0568
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       6
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4053
_diffrn_reflns_theta_max         30
_diffrn_standards_decay_%        2
_diffrn_standards_interval_count 96
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    6.95
_exptl_absorpt_correction_T_max  0.460
_exptl_absorpt_correction_T_min  0.312
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    2.29
_exptl_crystal_description       Platelets
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.0
_refine_diff_density_min         -0.9
_refine_ls_extinction_coef       0.00038
_refine_ls_extinction_method     'SHELXTL (Sheldrick,1990)'
_refine_ls_goodness_of_fit_obs   1.581
_refine_ls_number_parameters     110
_refine_ls_number_reflns         3307
_refine_ls_R_factor_obs          0.0417
_refine_ls_shift/esd_max         1.147
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(F) + 0.0074(F)^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.0594
_reflns_number_observed          3307
_reflns_number_total             3702
_reflns_observed_criterion       |F|>3\s(F)
_cod_data_source_file            ab1031.cif
_cod_data_source_block           ab1031_structure_1_of_1
_cod_depositor_comments
;
The original symmetry operators looked like:

_cod_original_cell_volume        1272.3(5)
_cod_original_formula_sum        'C4 H12 As1 Cl5 Cu2'
_cod_database_code               2001286