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_1575349
_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         'C26 H24 N2 O3'
_chemical_formula_sum            'C26 H24 N2 O3'
_chemical_formula_weight         412.47
_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
_atom_sites_solution_primary     dual
_audit_creation_date             2024-12-26
_audit_creation_method
;
Olex2 1.2-ac3
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2025-03-05 deposited with the CCDC.	2025-08-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.988(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.5413(6)
_cell_length_b                   10.3509(5)
_cell_length_c                   17.3360(9)
_cell_measurement_reflns_used    9156
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      23.118
_cell_measurement_theta_min      2.292
_cell_volume                     2070.70(18)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2015)'
_diffrn_ambient_temperature      103.0
_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  0.0886
_diffrn_reflns_av_unetI/netI     0.0418
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            73726
_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         28.325
_diffrn_reflns_theta_min         2.103
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.6979
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0883 before and 0.0789 after correction. The Ratio of minimum to maximum transmission is 0.9359. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_description       block
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.104
_exptl_crystal_size_mid          0.097
_exptl_crystal_size_min          0.021
_refine_diff_density_max         0.284
_refine_diff_density_min         -0.243
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         5143
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0599
_refine_ls_R_factor_gt           0.0448
_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^)+(0.0394P)^2^+0.8597P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0976
_refine_ls_wR_factor_ref         0.1077
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4064
_reflns_number_total             5143
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5cy00765h2.cif
_cod_data_source_block           kg_rc_160_1570_0m_a
_cod_depositor_comments
'Adding full bibliography for 1575346--1575352.cif.'
_cod_database_code               1575349
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_max   0.998
_shelx_estimated_absorpt_t_min   0.991
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All N(H) groups
2.a Ternary CH refined with riding coordinates:
 C10(H10)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C6(H6), C8(H8), C12(H12), C16(H16), C17(H17), C19(H19),
 C20(H20), C21(H21), C22(H22), C24(H24)
2.c Idealised Me refined as rotating group:
 C9(H9A,H9B,H9C), C25(H25A,H25B,H25C), C26(H26A,H26B,H26C)
;
_shelx_res_checksum              25045
_olex2_submission_special_instructions 'No special instructions were received'