Structure du bis(tétraéthylammonium)tétrachlorocuprate(II) hémihydrate, [(C~2~H~5~)~4~N]~2~[CuCl~4~].0,5H~2~O
Mahoui, A.; Lapasset, J.; Moret, J.; Acta Crystallographica Section C 50 (1994) 358–362; doi:10.1107/S0108270193007280

data_2009530
_publ_section_title
;
 Structure du bis(t\'etra\'ethylammonium)t\'etrachlorocuprate(II)
 h\'emihydrate, [(C~2~H~5~)~4~N]~2~[CuCl~4~].0,5H~2~O
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              358
_journal_page_last               362
_journal_paper_doi               10.1107/S0108270193007280
_journal_volume                  50
_journal_year                    1994
_chemical_formula_moiety         'C16 H40 N2, Cl4 Cu, 0.5(H2 O)'
_chemical_formula_sum            'C16 H41 Cl4 Cu N2 O0.5'
_chemical_formula_weight         474.89
_space_group_crystal_system      tetragonal
_space_group_IT_number           85
_space_group_name_Hall           '-P 4a'
_space_group_name_H-M_alt        'P 4/n :2'
_cell_angle_alpha                90.
_cell_angle_beta                 90.
_cell_angle_gamma                90.
_cell_formula_units_Z            4
_cell_length_a                   14.02(3)
_cell_length_b                   14.02(3)
_cell_length_c                   12.47(3)
_cell_measurement_reflns_used    20
_cell_measurement_temperature    297
_cell_measurement_theta_max      51
_cell_measurement_theta_min      31
_cell_volume                     2451(9)
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \q-2\q
_diffrn_radiation_type           Cu
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.019
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3051
_diffrn_reflns_theta_max         65
_diffrn_standards_decay_%        none
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    5.180
_exptl_absorpt_correction_T_max  3.74
_exptl_absorpt_correction_T_min  2.14
_exptl_absorpt_correction_type   integration
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.29
_exptl_crystal_density_meas      1.28
_exptl_crystal_description       prism
_exptl_crystal_F_000             1008
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.38
_refine_diff_density_min         -0.45
_refine_ls_goodness_of_fit_obs   1.689
_refine_ls_number_parameters     143
_refine_ls_number_reflns         1397
_refine_ls_R_factor_obs          0.0573
_refine_ls_shift/esd_max         0.01
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[\s^2^(F) + 0.000637F^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.0595
_reflns_number_observed          1397
_reflns_number_total             1673
_reflns_observed_criterion       F~o~>4\sF~o~
_cod_data_source_file            du1030.cif
_cod_data_source_block           du1030_structure_1_of_1
_cod_depositor_comments
;
 Adding the atomic displacement parameter values after consulting the original
 publication.

 Antanas Vaitkus,
 2018-02-01

 Adding the coordinates of the 'O' atom after consulting the original
 publication. The 'O' atom and the 'Cl(22)' share the same site disordered
 around a 4-fold special position. For this reason both of the atoms were
 given the occupancies of 0.25.

 'Cu' and 'Cl(23)' atoms are also disordered around the same position and
 were given the occupancies of 0.25 and 0.5 respectively since two of the
 'Cl(23)' symmetric equivalents are present at the same time.

 All of the atoms disordered around the special position were assigned the
 '-1' disorder group.

 Antanas Vaitkus,
 2018-02-01

 Adding the _atom_type_symbol loop and the _atom_site_type_symbol data item.

 Antanas Vaitkus,
 2018-02-01

 Correcting the _geom_angle_atom_site_label_1 data item value by changing
 it from 'Cl(2)' to 'Cl(21)'.

 Antanas Vaitkus,
 2018-02-01

 Marking atom disorder in the tetraethylammonium moiety after consulting
 the original publication.

 Antanas Vaitkus,
 2018-02-01

 Correcting the coordinates of the hydrogen atoms that seem to be misplaced.
 Changing the y coordinate of the 'H(11)' atom from '.0874' to '-.0874'.
 Changing the y coordinate of the 'H(12)' atom from '.0538' to '-.0538'.

 Antanas Vaitkus,
 2018-02-01

 Correcting the space group by changing it from 'P 4ab -1ab' to '-P 4a' after
 consulting the original publication.

 Antanas Vaitkus,
 2018-02-01

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value ' 1/[\s^2^(F) + 0.000637F^2^]'
was changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w = 1/[\s^2^(F) +
0.000637F^2^]'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2451(16)
_cod_original_formula_sum        'C16 H40 Cl4 Cu1 N2'
_cod_database_code               2009530