Utilization of methanol and ethanol for 3,3′-bis(indolyl)methane synthesis through activation of peroxymonosulfate over a copper catalyst
Devi, Arpita; Bharali, Mrinmoy Manash; Biswas, Subir; Bora, Tonmoy J.; Nath, Jayanta K.; Lee, Seonghwan; Park, Young-Bin; Saikia, Lakshi; Baruah, Manash J.; Bania, Kusum K.; Green Chemistry 25 (2023) 3443–3448; doi:10.1039/D3GC00440F

data_7246607
_publ_section_title
;
 Utilization of methanol and ethanol for 3,3&#x2032;-bis(indolyl)methane
 synthesis through activation of peroxymonosulfate over a copper catalyst
;
_journal_issue                   9
_journal_name_full               'Green Chemistry'
_journal_page_first              3443
_journal_page_last               3448
_journal_paper_doi               10.1039/D3GC00440F
_journal_volume                  25
_journal_year                    2023
_chemical_formula_moiety         'C18 H14 Br2 N2'
_chemical_formula_sum            'C18 H14 Br2 N2'
_chemical_formula_weight         418.11
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2023-01-08 deposited with the CCDC.	2023-04-11 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 120.687(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.960(5)
_cell_length_b                   18.557(10)
_cell_length_c                   7.814(3)
_cell_measurement_reflns_used    4496
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      19.23
_cell_measurement_theta_min      3.66
_cell_volume                     1616.1(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.1464
_diffrn_reflns_av_sigmaI/netI    0.1514
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            27969
_diffrn_reflns_theta_full        28.23
_diffrn_reflns_theta_max         28.23
_diffrn_reflns_theta_min         2.13
_exptl_absorpt_coefficient_mu    5.013
_exptl_absorpt_correction_T_max  0.332
_exptl_absorpt_correction_T_min  0.228
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2016/2 (Bruker,2016/2)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.718
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.527
_refine_diff_density_min         -1.086
_refine_diff_density_rms         0.111
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.920
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         3876
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.920
_refine_ls_R_factor_all          0.1275
_refine_ls_R_factor_gt           0.0529
_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^)+(0.0000P)^2^+2.1667P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0992
_refine_ls_wR_factor_ref         0.1278
_reflns_number_gt                2185
_reflns_number_total             3876
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d3gc00440f2.cif
_cod_data_source_block           app4_a
_cod_depositor_comments
'Adding full bibliography for 7246605--7246607.cif.'
_cod_original_cell_volume        1616.2(13)
_cod_database_code               7246607