Bis[4-(dimethylamino)pyridinium] tetrabromidocuprate(II)
Lo, Kong Mun; Ng, Seik Weng; Acta Crystallographica Section E 65 (2009) m972–; doi:10.1107/S1600536809028128

data_2222902
_publ_section_title
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 Bis[4-(dimethylamino)pyridinium] tetrabromidocuprate(II)
;
_journal_coeditor_code           TK2503
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m972
_journal_paper_doi               10.1107/S1600536809028128
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '(C7 H11 N2)2 [Cu1 Br4]'
_chemical_formula_moiety         '2(C7 H11 N2 +), Br4 Cu 2-'
_chemical_formula_sum            'C14 H22 Br4 Cu N4'
_chemical_formula_weight         629.54
_chemical_name_systematic
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Bis[4-(dimethylamino)pyridinium] tetrabromidocuprate(II)
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.689(2)
_cell_angle_beta                 94.814(2)
_cell_angle_gamma                105.073(2)
_cell_formula_units_Z            2
_cell_length_a                   8.1768(2)
_cell_length_b                   9.2406(3)
_cell_length_c                   14.3686(4)
_cell_measurement_reflns_used    2442
_cell_measurement_temperature    233(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.3
_cell_volume                     1040.42(5)
_computing_cell_refinement       'SAINT (Bruker, 2008)'
_computing_data_collection       'APEX2 (Bruker, 2008)'
_computing_data_reduction        'SAINT (Bruker, 2008)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material  'publCIF (Westrip, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      233(2)
_diffrn_measured_fraction_theta_full 0.962
_diffrn_measured_fraction_theta_max 0.962
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.042
_diffrn_reflns_av_sigmaI/netI    0.079
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            7224
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.5
_diffrn_reflns_theta_min         1.4
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.734
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.321
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            Black
_exptl_crystal_density_diffrn    2.010
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             606
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.84
_refine_diff_density_min         -0.82
_refine_ls_extinction_coef       0.0078(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.00
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     213
_refine_ls_number_reflns         4595
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.00
_refine_ls_R_factor_all          0.070
_refine_ls_R_factor_gt           0.043
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0566P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.110
_refine_ls_wR_factor_ref         0.123
_reflns_number_gt                3168
_reflns_number_total             4595
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            tk2503.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2222902
_cod_database_fobs_code          2222902