Well-defined zinc(ii) catalysts for sustainable synthesis of bis(indolyl)methanes via the activation of aromatic and aliphatic alcohols
Chauhan, Rahul; Kukreti, Prashant; Sharma, Keshav; Singh, Ovender; Ghosh, Kaushik; Catalysis Science & Technology 15 (2025) 6693–6702; doi:10.1039/D5CY00765H

data_1575350
_publ_section_title
;
 Well-defined zinc(ii) catalysts for sustainable synthesis of
 bis(indolyl)methanes via the activation of aromatic and aliphatic
 alcohols
;
_journal_issue                   22
_journal_name_full               'Catalysis Science &amp; Technology'
_journal_page_first              6693
_journal_page_last               6702
_journal_paper_doi               10.1039/D5CY00765H
_journal_volume                  15
_journal_year                    2025
_chemical_formula_moiety         'C27 H23 Br2 N7 Zn'
_chemical_formula_sum            'C27 H23 Br2 N7 Zn'
_chemical_formula_weight         670.71
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2025-07-16
_audit_creation_method
;
Olex2 1.5
(compiled 2025.04.05 svn.rf049d14d for OlexSys, GUI svn.r7224)
;
_audit_update_record
;
2025-07-29 deposited with the CCDC.	2025-08-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.608(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.4176(14)
_cell_length_b                   10.0308(10)
_cell_length_c                   20.418(2)
_cell_measurement_reflns_used    9866
_cell_measurement_temperature    300(2)
_cell_measurement_theta_max      22.453
_cell_measurement_theta_min      2.535
_cell_volume                     2747.9(5)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_diffrn_ambient_temperature      300.00
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker D8 Quest CMOS'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0855
_diffrn_reflns_av_unetI/netI     0.0405
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            97682
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.338
_diffrn_reflns_theta_min         1.995
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    3.832
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.5790
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0994 before and 0.0644 after correction.
The Ratio of minimum to maximum transmission is 0.7765.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'metallic dark green'
_exptl_crystal_colour_lustre     metallic
_exptl_crystal_colour_modifier   dark
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.621
_exptl_crystal_description       block
_exptl_crystal_F_000             1336
_exptl_crystal_size_max          0.216
_exptl_crystal_size_mid          0.066
_exptl_crystal_size_min          0.031
_refine_diff_density_max         0.409
_refine_diff_density_min         -0.335
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.005
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     340
_refine_ls_number_reflns         6842
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.0607
_refine_ls_R_factor_gt           0.0330
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0313P)^2^+0.6791P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0663
_refine_ls_wR_factor_ref         0.0755
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4810
_reflns_number_total             6842
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cy00765h2.cif
_cod_data_source_block           kg_rc_97br_300k_1989_a
_cod_depositor_comments
'Adding full bibliography for 1575346--1575352.cif.'
_cod_database_code               1575350
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_max   0.890
_shelx_estimated_absorpt_t_min   0.492
_olex2_refinement_description
;
1.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4A), C5(H5), C6(H6), C8(H8), C9(H9), C10(H10), C12(H12),
 C14(H14), C15(H15), C16(H16), C18(H18), C19(H19), C20(H20), C21(H21), C22(H22),
  C23(H23), C25(H25), C26(H26), C27(H27)
;
_shelx_res_checksum              94096
_olex2_submission_special_instructions 'No special instructions were received'