Five (1<i>H</i>-pyrrol-2-yl)pyridines
Noland, Wayland E.; Cole, Kevin P.; Britton, Doyle; Acta Crystallographica Section C 59 (2003) o263–o267; doi:10.1107/S0108270103007042

data_2013304
_publ_section_title
;
 Five (1<i>H</i>-pyrrol-2-yl)pyridines
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o263
_journal_page_last               o267
_journal_paper_doi               10.1107/S0108270103007042
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C9 H8 N2'
_chemical_formula_moiety         'C9 H8 N2'
_chemical_formula_sum            'C9 H8 N2'
_chemical_formula_weight         144.17
_chemical_name_systematic
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4-(1H-pyrrol-2-yl)pyridine
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                90.00
_cell_angle_beta                 96.230(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   7.402(2)
_cell_length_b                   11.480(3)
_cell_length_c                   17.705(4)
_cell_measurement_reflns_used    2036
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.4
_cell_measurement_theta_min      2.9
_cell_volume                     1495.6(7)
_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 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.052
_diffrn_reflns_av_sigmaI/netI    0.070
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            9224
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.12
_diffrn_standards_decay_%        <1
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.079
_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    1.281
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.22
_refine_diff_density_min         -0.21
_refine_ls_extinction_coef       0.0061(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXTL
_refine_ls_goodness_of_fit_ref   0.92
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         3412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.92
_refine_ls_R_factor_all          0.096
_refine_ls_R_factor_gt           0.047
_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^)+(0.058P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.103
_refine_ls_wR_factor_ref         0.118
_reflns_number_gt                1933
_reflns_number_total             3412
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            kb1000.cif
_cod_data_source_block           IIIA
_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_sg_symbol_H-M      'P 21/n'
_cod_database_code               2013304
_cod_database_fobs_code          2013304