<i>N,N</i>'-Bis(2-pyridylethyl)oxamide
An-Wu Xu; Hua-Xin Zhang; Hai-Yan Tan; Bei-Sheng Kang; Acta Crystallographica Section E 58 (2002) o1164–o1165; doi:10.1107/S1600536802017452

data_2201624
_publ_section_title
;
 <i>N,N</i>'-Bis(2-pyridylethyl)oxamide
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1164
_journal_page_last               o1165
_journal_paper_doi               10.1107/S1600536802017452
_journal_volume                  58
_journal_year                    2002
_chemical_formula_iupac          'C16 H18 N4 O2'
_chemical_formula_moiety         'C16 H18 N4 O2'
_chemical_formula_sum            'C16 H18 N4 O2'
_chemical_formula_weight         298.34
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 100.280(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.489(6)
_cell_length_b                   6.248(4)
_cell_length_c                   13.062(8)
_cell_measurement_reflns_used    2131
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.75
_cell_measurement_theta_min      2.18
_cell_volume                     762.0(8)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1998)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.781\%A
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker 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  0.0182
_diffrn_reflns_av_sigmaI/netI    0.0184
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4245
_diffrn_reflns_theta_full        27.06
_diffrn_reflns_theta_max         27.06
_diffrn_reflns_theta_min         3.17
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9824
_exptl_absorpt_correction_T_min  0.9594
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996; Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.300
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.216
_refine_diff_density_min         -0.126
_refine_ls_extinction_coef       0.07(2)
_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   1.062
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         1642
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0529
_refine_ls_R_factor_gt           0.0399
_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^)+(0.1359P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1575
_refine_ls_wR_factor_ref         0.1808
_reflns_number_gt                1274
_reflns_number_total             1642
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            su6000.cif
_cod_data_source_block           III
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 'Monoclinic' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_Hall     '-P 2ytc'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2201624
_cod_database_fobs_code          2201624