<i>N</i>-(2-Chloroethyl)pyrazine-2-carboxamide
da Silva Lima, Camilo H.; de Souza, Marcus V. N.; Wardell, Solange M. S. V.; Wardell, James L.; Tiekink, Edward R. T.; Acta Crystallographica Section E 66 (2010) o2886–o2887; doi:10.1107/S1600536810041656

data_2227567
_publ_section_title
;
 <i>N</i>-(2-Chloroethyl)pyrazine-2-carboxamide
;
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2886
_journal_page_last               o2887
_journal_paper_doi               10.1107/S1600536810041656
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C7 H8 Cl N3 O'
_chemical_formula_moiety         'C7 H8 Cl N3 O'
_chemical_formula_sum            'C7 H8 Cl N3 O'
_chemical_formula_weight         185.61
_chemical_name_systematic
;
<i>N</i>-(2-Chloroethyl)pyrazine-2-carboxamide
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 93.028(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.4639(2)
_cell_length_b                   10.6865(6)
_cell_length_c                   17.3583(9)
_cell_measurement_reflns_used    25954
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.9
_cell_volume                     826.90(7)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998)'
_computing_molecular_graphics
'ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  '10 cm confocal mirrors'
_diffrn_radiation_source         'Enraf Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.044
_diffrn_reflns_av_sigmaI/netI    0.024
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            16245
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.03
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.413
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.631
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.491
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.23
_refine_diff_density_min         -0.37
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.15
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         1867
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.15
_refine_ls_R_factor_all          0.046
_refine_ls_R_factor_gt           0.036
_refine_ls_shift/su_max_lt       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^)+(0.0577P)^2^+0.3276P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.092
_refine_ls_wR_factor_ref         0.110
_reflns_number_gt                1628
_reflns_number_total             1867
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb5682.cif
_cod_data_source_block           I
_cod_original_cell_volume        826.89(7)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2227567
_cod_database_fobs_code          2227567