IPr*Oxa – A New Class of Sterically-Hindered, Wingtip-Flexible N,C-Chelating Oxazole-Donor N-Heterocyclic Carbene Ligands
Podchorodecka, Pamela; Dziuk, Błażej; Szostak, Roman; Szostak, Michal; Bisz, Elwira; Dalton Transactions  (2023) –; doi:10.1039/D3DT02255B

data_7713796
_publ_section_title
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 IPr*Oxa -- A New Class of Sterically-Hindered, Wingtip-Flexible
 N,C-Chelating Oxazole-Donor N-Heterocyclic Carbene Ligands
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_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D3DT02255B
_journal_year                    2023
_chemical_formula_sum            'C45 H36 Ag Cl N3 O2 S0'
_chemical_formula_weight         794.09
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-06-18 deposited with the CCDC.	2023-08-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.3597(10)
_cell_length_b                   20.6053(10)
_cell_length_c                   10.1258(6)
_cell_measurement_reflns_used    4790
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.0350
_cell_measurement_theta_min      1.4810
_cell_volume                     3830.7(4)
_computing_cell_refinement       'CrysAlisCCD (Oxford Diffraction Ltd., 2008)'
_computing_data_collection       'CrysAlisCCD (Oxford Diffraction Ltd., 2008)'
_computing_data_reduction        'CrysAlisCCD (Oxford Diffraction Ltd., 2008)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'KM4 with Eos CCD'
_diffrn_measurement_method       \w--scan
_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  0.0320
_diffrn_reflns_av_unetI/netI     0.0493
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            15484
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.996
_diffrn_reflns_theta_min         1.486
_exptl_absorpt_coefficient_mu    0.637
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.95400
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SCALE3 ABSPACK (Rigaku Oxford Diffraction, 2015).
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.377
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1628
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.326
_refine_diff_density_min         -0.266
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.25(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     472
_refine_ls_number_reflns         7022
_refine_ls_number_restraints     798
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0456
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0393P)^2^+0.7041P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0896
_refine_ls_wR_factor_ref         0.0984
_reflns_Friedel_coverage         0.887
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                5404
_reflns_number_total             7022
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3dt02255b2.cif
_cod_data_source_block           B127_d
_cod_database_code               7713796
_shelx_shelxl_version_number     2014/7
_exptl_absorpt_special_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.33c (release 11-04-2014 CrysAlis171 .NET)
(compiled Apr 11 2014,15:12:41)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_shelx_res_checksum              88790