Condensation of cyclohexanediones with pyrrole under acidic conditions: unusual products and interesting structural features
Mahanta, Sanjeev P.; Panda, Pradeepta K.; RSC Adv. 3 (2013) 6614–; doi:10.1039/C3RA40208H

data_7238950
_publ_section_title
;
 Condensation of cyclohexanediones with pyrrole under acidic conditions:
 unusual products and interesting structural features
;
_journal_issue                   18
_journal_name_full               'RSC Adv.'
_journal_page_first              6614
_journal_paper_doi               10.1039/C3RA40208H
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C14 H16 N2 O'
_chemical_formula_weight         228.29
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   12.9488(7)
_cell_length_b                   14.6721(12)
_cell_length_c                   25.565(2)
_cell_measurement_reflns_used    1425
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.3143
_cell_measurement_theta_min      2.6339
_cell_volume                     4857.0(6)
_computing_cell_refinement       CrysAlisPro
_computing_data_collection       CrysAlisPro
_computing_data_reduction        CrysAlisPro
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  '\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  0.1793
_diffrn_reflns_av_sigmaI/netI    0.2812
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            12737
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         2.63
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_T_max  0.9928
_exptl_absorpt_correction_T_min  0.9897
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALE3 ABSPACK'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.249
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1952
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.141
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.709
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         4929
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.709
_refine_ls_R_factor_all          0.2501
_refine_ls_R_factor_gt           0.0539
_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^)+(0.0159P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0597
_refine_ls_wR_factor_ref         0.0834
_reflns_number_gt                1358
_reflns_number_total             4929
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra40208h.txt
_cod_data_source_block           sanjib_s
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'Pbca '
_cod_database_code               7238950