1-(Pyrazin-2-yl)pyridin-2(1<i>H</i>)-one
Zhang, Shi-Guo; Xu, Hai-Yan; Shi, Jing-Min; Acta Crystallographica Section E 63 (2007) o3294–o3294; doi:10.1107/S1600536807029996

data_2214096
_publ_section_title
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 1-(Pyrazin-2-yl)pyridin-2(1<i>H</i>)-one
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_journal_coeditor_code           BT2398
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3294
_journal_page_last               o3294
_journal_paper_doi               10.1107/S1600536807029996
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C9 H7 N3 O'
_chemical_formula_moiety         'C9 H7 N3 O'
_chemical_formula_sum            'C9 H7 N3 O'
_chemical_formula_weight         173.18
_chemical_name_systematic
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1-(Pyrazin-2-yl)pyridin-2(1H)-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.7885(12)
_cell_length_b                   13.939(4)
_cell_length_c                   15.191(5)
_cell_measurement_reflns_used    915
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      21.449
_cell_measurement_theta_min      2.6815
_cell_volume                     802.2(4)
_computing_cell_refinement       'SAINT (Bruker, 1997)'
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2001)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_diffrn_measurement_method       '\f and \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  0.0503
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            4919
_diffrn_reflns_theta_full        27.75
_diffrn_reflns_theta_max         27.75
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.9872
_exptl_absorpt_correction_T_min  0.9567
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.434
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.158
_refine_diff_density_min         -0.169
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1116
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0625
_refine_ls_R_factor_gt           0.0464
_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^)+(0.0552P)^2^+0.0218P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1025
_refine_ls_wR_factor_ref         0.1085
_reflns_number_gt                877
_reflns_number_total             1116
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bt2398.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               2214096
_cod_database_fobs_code          2214096