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_4505858
_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 Cl4 Cu N4'
_chemical_formula_weight         635.96
_chemical_name_common            'CuCl4 + 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                83.825(12)
_cell_angle_beta                 86.673(23)
_cell_angle_gamma                71.387(19)
_cell_formula_units_Z            2
_cell_length_a                   9.900(4)
_cell_length_b                   9.926(1)
_cell_length_c                   16.705(3)
_cell_measurement_reflns_used    39
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      12.5
_cell_measurement_theta_min      3.33
_cell_volume                     1546.2(7)
_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 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0340
_diffrn_reflns_av_sigmaI/netI    0.0837
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            5779
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.17
_diffrn_standards_decay_%        <2
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.076
_exptl_absorpt_correction_T_max  0.7023
_exptl_absorpt_correction_T_min  0.6981
_exptl_absorpt_correction_type   Semi-empirical
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.366
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             662
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.24
_refine_diff_density_max         0.239
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.059
_refine_ls_extinction_coef       0.0029(7)
_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   1.001
_refine_ls_hydrogen_treatment    'none refined except H1 and H1A'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     341
_refine_ls_number_reflns         5432
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.001
_refine_ls_R_factor_all          0.1139
_refine_ls_R_factor_gt           0.0546
_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^)+(0.0378P)^2^+0.5826P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1006
_refine_ls_wR_factor_ref         0.1208
_reflns_number_gt                3193
_reflns_number_total             5432
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0155393_s1.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0378P)^2^+0.5826P] 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^)+(0.0378P)^2^+0.5826P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4505858
_solved_by                       'Simon Hernandez-Ortega'