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_7238949
_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            'C22 H24 N4'
_chemical_formula_weight         344.45
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/n 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                 108.015(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.531(3)
_cell_length_b                   18.801(7)
_cell_length_c                   11.864(5)
_cell_measurement_reflns_used    418
_cell_measurement_temperature    298(2)
_cell_volume                     1809.6(12)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.3971
_diffrn_reflns_av_sigmaI/netI    0.3231
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            18206
_diffrn_reflns_theta_full        26.01
_diffrn_reflns_theta_max         26.01
_diffrn_reflns_theta_min         2.11
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9916
_exptl_absorpt_correction_T_min  0.9894
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXS SADABS program'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.220
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_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         3561
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.856
_refine_ls_R_factor_all          0.3165
_refine_ls_R_factor_gt           0.0777
_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^)+(0.0883P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1658
_refine_ls_wR_factor_ref         0.2637
_reflns_number_gt                886
_reflns_number_total             3561
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra40208h.txt
_cod_data_source_block           san-s
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' 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      'P2(1)/n '
_cod_database_code               7238949