Hydrogen-bonding patterns in six derivatives of 2,4-dimethylpyrrole
Senge, Mathias O.; Smith, Kevin M.; Acta Crystallographica Section C 61 (2005) o537–o541; doi:10.1107/S0108270105023991

data_2014990
_publ_section_title
;
 Hydrogen-bonding patterns in six derivatives of 2,4-dimethylpyrrole
;
_journal_coeditor_code           FG1869
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o537
_journal_page_last               o541
_journal_paper_doi               10.1107/S0108270105023991
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C16 H17 N O3'
_chemical_formula_moiety         'C16 H17 N O3'
_chemical_formula_sum            'C16 H17 N O3'
_chemical_formula_weight         271.31
_chemical_name_systematic
;
benzyl 4-acetyl-3,5-dimethylpyrrole-2-carboxylate
;
_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                 100.47(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.473(3)
_cell_length_b                   14.359(3)
_cell_length_c                   7.489(2)
_cell_measurement_reflns_used    44
_cell_measurement_temperature    143(2)
_cell_measurement_theta_max      23
_cell_measurement_theta_min      18
_cell_volume                     1424.7(6)
_computing_cell_refinement       P3
_computing_data_collection       'P3 (Siemens, 1995)'
_computing_data_reduction        'XDISK (Siemens, 1995)'
_computing_molecular_graphics    'XP (Siemens, 1995)'
_computing_publication_material
;
SHELXL97
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      143(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Siemens R3m/V'
_diffrn_measurement_method       '\w scans'
_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  0.0435
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_diffrn_reflns_limit_h_min       -17
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_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            3519
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.09
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 198
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.265
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cube
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.407
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_refine_ls_extinction_coef       0.027(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
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_refine_ls_R_factor_all          0.0486
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_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^)+(0.0692P)^2^+0.3279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1146
_refine_ls_wR_factor_ref         0.1203
_reflns_number_gt                2871
_reflns_number_total             3268
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fg1869.cif
_cod_data_source_block           3
_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_H-M      'P 21/c'
_cod_database_code               2014990
_cod_database_fobs_code          2014990