Assessing the persistence of the N–H⋯N hydrogen bonding leading to supramolecular chains in molecules related to the anti-malarial drug, chloroquine
Kaiser, Carlos R.; Pais, Karla C.; de Souza, Marcus V. N.; Wardell, James L.; Wardell, Solange M. S. V.; Tiekink, Edward R. T.; CrystEngComm 11 (2009) 1133–1140; doi:10.1039/b823058g

data_7200869
_publ_section_title
;
 Assessing the persistence of the N--H&#x22EF;N hydrogen bonding leading
 to supramolecular chains in molecules related to the anti-malarial drug,
 chloroquine
;
_journal_coden_ASTM              CRECF4
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              1133
_journal_page_last               1140
_journal_paper_doi               10.1039/b823058g
_journal_volume                  11
_journal_year                    2009
_chemical_formula_moiety         'C11 H10 Cl2 N2'
_chemical_formula_sum            'C11 H10 Cl2 N2'
_chemical_formula_weight         241.11
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90
_cell_angle_beta                 100.024(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   4.6442(12)
_cell_length_b                   17.670(4)
_cell_length_c                   13.313(3)
_cell_measurement_reflns_used    967
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      25.6
_cell_measurement_theta_min      4.5
_cell_volume                     1075.8(4)
_computing_cell_refinement       'SAINT, Bruker'
_computing_data_collection       'APEX2, Bruker'
_computing_data_reduction        'SAINT, Bruker'
_computing_molecular_graphics
'ORTEPII (Johnson, 1976) and DIAMOND (Crystal Impact, 2006'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.961
_diffrn_measured_fraction_theta_max 0.961
_diffrn_measurement_device_type  'Bruker SMART APEX2 CCD diffractometer'
_diffrn_measurement_method       'fine-slice \w scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'Daresbury SRS station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.69050
_diffrn_reflns_av_R_equivalents  0.038
_diffrn_reflns_av_sigmaI/netI    0.058
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            3681
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         4.5
_diffrn_standards_decay_%        5
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.568
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.733
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2.10 (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.489
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.41
_refine_diff_density_min         -0.35
_refine_diff_density_rms         0.097
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.13(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.11
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     139
_refine_ls_number_reflns         1913
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.11
_refine_ls_R_factor_all          0.038
_refine_ls_R_factor_gt           0.038
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0679P)^2^+0.0079P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.104
_refine_ls_wR_factor_ref         0.105
_reflns_number_gt                1889
_reflns_number_total             1913
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            B823058G.txt
_cod_data_source_block           Cl
_cod_depositor_comments
;
 Replaced the incorrect bibliographical reference to the original
 publication with a proper one.
 
 Antanas Vaitkus,
 2019-09-17 
;
_cod_original_sg_symbol_Hall     'C -2yc '
_cod_original_sg_symbol_H-M      'C c'
_cod_database_code               7200869