Using Halogen···Halogen Interactions to Direct Noncentrosymmetric Crystal Packing in Dipolar Organic Molecules
Saha, Binoy K.; Nangia, Ashwini; Nicoud, Jean-François; Crystal Growth & Design 6 (2006) 1278–; doi:10.1021/cg060117k

data_4508716
_publ_section_title
;
 Using Halogen&#x00B7;&#x00B7;&#x00B7;Halogen Interactions to Direct
 Noncentrosymmetric Crystal Packing in Dipolar Organic Molecules
;
_journal_issue                   6
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1278
_journal_paper_doi               10.1021/cg060117k
_journal_volume                  6
_journal_year                    2006
_chemical_formula_moiety         'C5 H5 N O2'
_chemical_formula_sum            'C5 H5 N O2'
_chemical_formula_weight         111.10
_chemical_name_common            3-hydroxypyridine-N-oxide
_chemical_name_systematic
; 
3-hydroxypyridine-N-oxide
;
_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                113.794(2)
_cell_angle_beta                 99.650(2)
_cell_angle_gamma                106.930(2)
_cell_formula_units_Z            2
_cell_length_a                   6.3536(8)
_cell_length_b                   6.5014(8)
_cell_length_c                   6.9499(8)
_cell_measurement_reflns_used    1429
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.02
_cell_measurement_theta_min      3.39
_cell_volume                     237.59(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0143
_diffrn_reflns_av_sigmaI/netI    0.0182
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            1737
_diffrn_reflns_theta_full        26.02
_diffrn_reflns_theta_max         26.02
_diffrn_reflns_theta_min         3.39
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  0.9939
_exptl_absorpt_correction_T_min  0.9783
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS - Bruker Nonius area detector scaling and absorption correction - V2.10'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.553
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       niddle
_exptl_crystal_F_000             116
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.176
_refine_diff_density_min         -0.233
_refine_diff_density_rms         0.074
_refine_ls_extinction_coef       0.17(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   1.115
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         941
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.115
_refine_ls_R_factor_all          0.0416
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0596P)^2^+0.0590P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1037
_refine_ls_wR_factor_ref         0.1055
_reflns_number_gt                889
_reflns_number_total             941
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg060117ksup7.cif
_cod_data_source_block           an392_m
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4508716