Exploring the influence of steric hindrance and electronic nature of substituents in the supramolecular arrangements of 5-(substituted phenyl)-2-formylpyrroles
Figueira, Cláudia A.; Lopes, Patrícia S.; Gomes, Clara S. B.; Veiros, Luís F.; Gomes, Pedro T.; CrystEngComm 17 (2015) 6406–; doi:10.1039/C5CE00927H

data_7221574
_publ_section_title
;
 Exploring the influence of steric hindrance and electronic nature of
 substituents in the supramolecular arrangements of 5-(substituted
 phenyl)-2-formylpyrroles
;
_journal_issue                   33
_journal_name_full               CrystEngComm
_journal_page_first              6406
_journal_paper_doi               10.1039/C5CE00927H
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C19.43 H25.30 N O, 0.566(C H3)'
_chemical_formula_sum            'C20 H27 N O'
_chemical_formula_weight         297.43
_chemical_name_common            5-(2,4,6-triisopropylphenyl)-2-formylpyrrole
_chemical_name_systematic
5-(2,4,6-triisopropylphenyl)-1H-pyrrole-2-carbaldehyde
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014
_audit_update_record
;
2015-05-08 deposited with the CCDC.
2015-07-16 downloaded from the CCDC.
;
_cell_angle_alpha                72.477(7)
_cell_angle_beta                 70.308(5)
_cell_angle_gamma                65.232(4)
_cell_formula_units_Z            2
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_cell_length_b                   9.8371(13)
_cell_length_c                   12.608(2)
_cell_measurement_reflns_used    1310
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      24.26
_cell_measurement_theta_min      2.63
_cell_volume                     904.1(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    ORTEP
_computing_publication_material  enCIFer
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    SIR2004
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0432
_diffrn_reflns_av_unetI/netI     0.0719
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.982
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            7972
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.982
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.741
_diffrn_reflns_theta_min         2.321
_exptl_absorpt_coefficient_mu    0.066
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.989
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.093
_exptl_crystal_description       Prism
_exptl_crystal_F_000             324
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: n-hexane'
_exptl_crystal_size_max          0.160
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.194
_refine_diff_density_min         -0.199
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.942
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         3402
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.942
_refine_ls_R_factor_all          0.1054
_refine_ls_R_factor_gt           0.0498
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0527P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1036
_refine_ls_wR_factor_ref         0.1169
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1968
_reflns_number_total             3402
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5ce00927h2.cif
_cod_data_source_block           4
_cod_depositor_comments
'Adding full bibliography for 7221571--7221577.cif.'
_cod_database_code               7221574
_shelx_estimated_absorpt_t_min   0.989
_shelx_estimated_absorpt_t_max   0.992
_shelxl_version_number           2014-3
_shelx_res_checksum              66963