Intertwined gababutin-based supramolecular double helix
Konda, Maruthi; Ghosh, Tapas; Mobin, Shaikh M.; Das, Apurba K.; New Journal of Chemistry 43 (2019) 4830–; doi:10.1039/C8NJ05009K

data_7058180
_publ_section_title
;
 Intertwined gababutin-based supramolecular double helix
;
_journal_issue                   12
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              4830
_journal_paper_doi               10.1039/C8NJ05009K
_journal_volume                  43
_journal_year                    2019
_chemical_formula_sum            'C8 H11.27 N0.73 O2.18'
_chemical_formula_weight         152.54
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2018-01-08 deposited with the CCDC.    2019-02-15 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            11
_cell_length_a                   10.2051(2)
_cell_length_b                   12.0183(3)
_cell_length_c                   19.9352(4)
_cell_measurement_reflns_used    10806
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      71.2460
_cell_measurement_theta_min      3.6980
_cell_volume                     2445.01(9)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'OXFORD DIFFRACTION SUPER NOVA'
_diffrn_measurement_method       \w/q-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Micro-Focus (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.0286
_diffrn_reflns_av_unetI/netI     0.0200
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            16519
_diffrn_reflns_theta_full        71.48
_diffrn_reflns_theta_max         71.48
_diffrn_reflns_theta_min         4.30
_exptl_absorpt_coefficient_mu    0.682
_exptl_absorpt_correction_T_max  0.8700
_exptl_absorpt_correction_T_min  0.8063
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.140
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             900
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.340
_refine_diff_density_min         -0.229
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.2(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     278
_refine_ls_number_reflns         4707
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0458
_refine_ls_R_factor_gt           0.0438
_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^)+(0.0803P)^2^+0.2761P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1234
_refine_ls_wR_factor_ref         0.1287
_reflns_number_gt                4562
_reflns_number_total             4707
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c8nj05009k2.cif
_cod_data_source_block           akd016
_cod_depositor_comments
'Adding full bibliography for 7058178--7058180.cif.'
_cod_database_code               7058180