The effect of hydrogen bonding on the conformations of 2-(1<i>H</i>-indol-3-yl)-2-oxoacetamide and 2-(1<i>H</i>-indol-3-yl)-<i>N</i>,<i>N</i>-dimethyl-2-oxoacetamide
Sonar, Vijayakumar N.; Parkin, Sean; Crooks, Peter A.; Acta Crystallographica Section C 68 (2012) o405–o407; doi:10.1107/S0108270112038322

data_2018697
_publ_section_title
;
 The effect of hydrogen bonding on the conformations of
 2-(1<i>H</i>-indol-3-yl)-2-oxoacetamide and
 2-(1<i>H</i>-indol-3-yl)-<i>N</i>,<i>N</i>-dimethyl-2-oxoacetamide
;
_journal_coeditor_code           YP3017
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o405
_journal_page_last               o407
_journal_paper_doi               10.1107/S0108270112038322
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C12 H12 N2 O2'
_chemical_formula_moiety         'C12 H12 N2 O2'
_chemical_formula_sum            'C12 H12 N2 O2'
_chemical_formula_weight         216.24
_chemical_name_systematic
;
2-(1<i>H</i>-indol-3-yl)-<i>N</i>,<i>N</i>-dimethyl-2-oxoacetamide
;
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.7222(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.1813(2)
_cell_length_b                   6.00480(10)
_cell_length_c                   18.0625(4)
_cell_measurement_reflns_used    2759
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     1094.27(4)
_computing_cell_refinement       'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELXL97 (Sheldrick, 2008) and local procedures
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90.0(2)
_diffrn_detector_area_resol_mean 18
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius KappaCCD area-detector'
_diffrn_measurement_method       '\w scans at fixed \c = 55\%'
_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  0.0334
_diffrn_reflns_av_sigmaI/netI    0.0373
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            4780
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.02
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.986
_exptl_absorpt_correction_T_min  0.943
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.313
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             456
_exptl_crystal_size_max          0.65
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.225
_refine_diff_density_min         -0.200
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     147
_refine_ls_number_reflns         2515
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0523
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0561P)^2^+0.2642P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1038
_refine_ls_wR_factor_ref         0.1119
_reflns_number_gt                2031
_reflns_number_total             2515
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            yp3017.cif
_cod_data_source_block           II
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2018697
_cod_database_fobs_code          2018697