Absolute configuration of di(perchlorato-<i>O</i>)tetra(pyridine-<i>N</i>)copper(II), [Cu(ClO~4~)~2~(py)~4~]
Agnus, Y.; Labarelle, M.; Louis, R.; Metz, B.; Acta Crystallographica Section C 50 (1994) 536–538; doi:10.1107/S0108270193009813

data_2009609
_publ_section_title
;
 Absolute configuration of
 di(perchlorato-<i>O</i>)tetra(pyridine-<i>N</i>)copper(II),
 [Cu(ClO~4~)~2~(py)~4~]
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              536
_journal_page_last               538
_journal_paper_doi               10.1107/S0108270193009813
_journal_volume                  50
_journal_year                    1994
_chemical_formula_sum            'C20 H20 Cl2 Cu N4 O8'
_chemical_formula_weight         578.85
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_type_scat_source           IntTabIV
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.3020(10)
_cell_length_b                   13.9600(10)
_cell_length_c                   16.6400(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296
_cell_measurement_theta_max      26
_cell_measurement_theta_min      23
_cell_volume                     2393.1(3)
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.038
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2691
_diffrn_reflns_theta_max         72
_diffrn_standards_decay_%        1
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    3.84
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.92
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.607
_exptl_crystal_description       parallelepipeds
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.56
_refine_diff_density_min         -0.37
_refine_ls_goodness_of_fit_obs   1.13
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     316
_refine_ls_number_reflns         2400
_refine_ls_R_factor_obs          0.048
_refine_ls_shift/esd_max         0.09
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme      'see text'
_refine_ls_wR_factor_obs         0.047
_reflns_number_observed          2400
_reflns_number_total             2665
_reflns_observed_criterion       F~o~^2^>=3\s(F~o~^2^)
_cod_data_source_file            du1052.cif
_cod_data_source_block           du1052_structure_1_of_1
_cod_original_cell_volume        2393.1(6)
_cod_original_formula_sum        'C20 H20 Cl2 Cu1 N4 O8'
_cod_database_code               2009609