<i>Syn</i>- <i>versus anti</i>-carbopalladation of alkynes with organoborons: access to indoles symmetrically and unsymmetrically substituted on their 2,3-positions.
Ghasemi, Mehran; Rahimi, Banafshe; Dehghan, Maryam; Bernoosha, Mohammad Hossein; Jafarpour, Farnaz; Chemical communications (Cambridge, England) 59 (2023) 6873–6876; doi:10.1039/d3cc01753b

data_7131618
_publ_section_title
;
 <i>Syn</i>- <i>versus anti</i>-carbopalladation of alkynes with
 organoborons: access to indoles symmetrically and unsymmetrically
 substituted on their 2,3-positions.
;
_journal_issue                   45
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              6873
_journal_page_last               6876
_journal_paper_doi               10.1039/d3cc01753b
_journal_volume                  59
_journal_year                    2023
_chemical_formula_moiety         'C28 H23 N O'
_chemical_formula_sum            'C28 H23 N O'
_chemical_formula_weight         389.47
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2023-01-25
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2023-02-13 deposited with the CCDC.	2023-05-10 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.94(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.887(2)
_cell_length_b                   9.942(2)
_cell_length_c                   19.661(4)
_cell_measurement_reflns_used    11042
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      2.07
_cell_volume                     2125.3(7)
_computing_cell_refinement       'Automar software package (3.3a, 2015)'
_computing_data_collection       'MAR345 dtb Program (1.24-4, 2013)'
_computing_data_reduction        'Automar software package (3.3a, 2015)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 1999)'
_computing_publication_material  'PLATON (2018)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0592
_diffrn_reflns_av_unetI/netI     0.0444
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            11042
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.07
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.135
_refine_diff_density_min         -0.133
_refine_diff_density_rms         0.033
_refine_ls_extinction_coef       0.053(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.135
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     273
_refine_ls_number_reflns         3702
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.135
_refine_ls_R_factor_all          0.0814
_refine_ls_R_factor_gt           0.0639
_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^)+(0.0380P)^2^+0.7336P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1307
_refine_ls_wR_factor_ref         0.1392
_reflns_number_gt                2935
_reflns_number_total             3702
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            d3cc01753b2.cif
_cod_data_source_block           abs
_cod_depositor_comments
'Adding full bibliography for 7131617--7131619.cif.'
_cod_database_code               7131618
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B)
2.b Aromatic/amide H refined with riding coordinates:
 C6(H6), C7(H7), C13(H13), C14(H14), C15(H15), C16(H16), C17(H17), C18(H18),
 C19(H19), C20(H20), C21(H21), C22(H22), C23(H23), C25(H25), C26(H26), C27(H27),
  C28(H28), C29(H29)
2.c Idealised Me refined as rotating group:
 C30(H30A,H30B,H30C)
;
_olex2_submission_special_instructions 'No special instructions were received'