<i>p</i>-Isocyanobenzonitrile
Britton, Doyle; Acta Crystallographica Section E 58 (2002) o637–o639; doi:10.1107/S1600536802008371

data_2201182
_publ_section_title
;
 <i>p</i>-Isocyanobenzonitrile
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o637
_journal_page_last               o639
_journal_paper_doi               10.1107/S1600536802008371
_journal_volume                  58
_journal_year                    2002
_chemical_formula_iupac          'C8 H4 N2'
_chemical_formula_moiety         'C8 H4 N2'
_chemical_formula_sum            'C8 H4 N2'
_chemical_formula_weight         128.13
_chemical_name_systematic
;
p-isocyanobenzonitrile
;
_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           'SHELXTL plus manual additions'
_cell_angle_alpha                113.099(10)
_cell_angle_beta                 94.412(10)
_cell_angle_gamma                97.128(10)
_cell_formula_units_Z            1
_cell_length_a                   3.7923(11)
_cell_length_b                   6.4680(18)
_cell_length_c                   7.504(2)
_cell_measurement_reflns_used    1186
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     166.40(8)
_computing_cell_refinement       'SAINT (Siemens, 1995)'
_computing_data_collection       'SMART (Siemens, 1995)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Siemens SMART area-detector'
_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  0.0255
_diffrn_reflns_av_sigmaI/netI    0.0267
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            1941
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.5
_diffrn_reflns_theta_min         3.0
_diffrn_standards_decay_%        <1
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.97
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996; Blessing, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.279
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             66
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.22
_refine_diff_density_min         -0.21
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.07
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     54
_refine_ls_number_reflns         747
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.07
_refine_ls_R_factor_all          0.061
_refine_ls_R_factor_gt           0.049
_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^)+(0.079P)^2^+0.0192P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.126
_refine_ls_wR_factor_ref         0.133
_reflns_number_gt                610
_reflns_number_total             747
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om6088.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        166.41(8)
_cod_database_code               2201182
_cod_database_fobs_code          2201182