Demonstrating the Importance of Hydrogen Bonds through the Absence of Hydrogen Bonds
Valdés-Martínez, Jesús; Del Rio-Ramirez, Marisa; Hernández-Ortega, Simón; Aakeröy, Christer B.; Helfrich, Brian; Crystal Growth & Design 1 (2001) 485–; doi:10.1021/cg0155393

data_4505859
_publ_section_title
;
 Demonstrating the Importance of Hydrogen Bonds through the Absence of
 Hydrogen Bonds
;
_journal_issue                   6
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              485
_journal_paper_doi               10.1021/cg0155393
_journal_volume                  1
_journal_year                    2001
_chemical_formula_sum            'C28 H38 Br4 Cu N4'
_chemical_formula_weight         813.80
_chemical_name_common            'CuBr4 + 2DMANH'
_chemical_name_systematic
;
 ?
;
_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                75.645(9)
_cell_angle_beta                 77.522(6)
_cell_angle_gamma                65.741(9)
_cell_formula_units_Z            2
_cell_length_a                   9.6535(9)
_cell_length_b                   9.7211(11)
_cell_length_c                   19.3952(17)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12.5
_cell_measurement_theta_min      4.9
_cell_volume                     1594.1(3)
_computing_cell_refinement       'XSCANS Ver. 2.1, (SIEMENS 1994)'
_computing_data_collection       'XSCANS Ver. 2.1, (SIEMENS 1994)'
_computing_data_reduction        'XSCANS Ver. 2.1, (SIEMENS 1994)'
_computing_molecular_graphics    'XP, SHELXTL PC Ver  4.2 (sheldrick, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Siemens P4/PC'
_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  0.0460
_diffrn_reflns_av_sigmaI/netI    0.0984
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            5899
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.19
_diffrn_standards_decay_%        <2
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    5.722
_exptl_absorpt_correction_T_max  0.3940
_exptl_absorpt_correction_T_min  0.2325
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            Black
_exptl_crystal_density_diffrn    1.696
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             806
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.742
_refine_diff_density_min         -0.447
_refine_diff_density_rms         0.098
_refine_ls_extinction_coef       0.0008(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.990
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     341
_refine_ls_number_reflns         5545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.990
_refine_ls_R_factor_all          0.1254
_refine_ls_R_factor_gt           0.0534
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0343P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0902
_refine_ls_wR_factor_ref         0.1109
_reflns_number_gt                3024
_reflns_number_total             5545
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0155393_s1.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0343P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' 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^(Fo^2^)+(0.0343P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1594.07(39)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4505859
_solved_by                       'Simon Hernandez-Ortega'