<i>N</i>-(2-Hydroxyethyl)pyrazine-2-carboxamide
Zhang, Ming-Hua; Zheng, Shu-Ling; Zhou, Jian; Liu, Shang-Yuan; Zhao, Zeng-Guo; Acta Crystallographica Section E 61 (2005) o3568–o3570; doi:10.1107/S1600536805031326

data_2200007
_publ_section_title
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 <i>N</i>-(2-Hydroxyethyl)pyrazine-2-carboxamide
;
_journal_coeditor_code           AT6037
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3568
_journal_page_last               o3570
_journal_paper_doi               10.1107/S1600536805031326
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C7 H9 N3 O2'
_chemical_formula_moiety         'C7 H9 N3 O2'
_chemical_formula_sum            'C7 H9 N3 O2'
_chemical_formula_weight         167.17
_chemical_name_systematic
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N-(2-Hydroxyethyl)pyrazine-2-carboxamide
;
_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
_cell_angle_alpha                86.953(4)
_cell_angle_beta                 87.262(4)
_cell_angle_gamma                74.451(4)
_cell_formula_units_Z            4
_cell_length_a                   5.3054(12)
_cell_length_b                   7.8287(19)
_cell_length_c                   19.880(5)
_cell_measurement_reflns_used    1336
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      25.60
_cell_measurement_theta_min      2.70
_cell_volume                     793.9(3)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        'SAINT (Bruker, 1997)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_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  0.0218
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            4504
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.38
_diffrn_reflns_theta_min         2.05
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.11
_exptl_absorpt_correction_T_max  0.983
_exptl_absorpt_correction_T_min  0.962
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             352
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.24
_refine_diff_density_min         -0.20
_refine_ls_extinction_coef       0.042(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.05
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         3197
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.05
_refine_ls_R_factor_all          0.094
_refine_ls_R_factor_gt           0.049
_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^)+(0.0576P)^2^+0.0883P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.116
_refine_ls_wR_factor_ref         0.134
_reflns_number_gt                1895
_reflns_number_total             3197
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            at6037.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 'Triclinic' changed to 'triclinic'
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               2200007
_cod_database_fobs_code          2200007