Siloxane-containing derivatives of benzoic acid: chemical transformation of the carboxyl group
Goncharova, Irina K.; Ulianova, Eva A.; Novikov, Roman A.; Volodin, Alexander D.; Korlyukov, Alexander A.; Arzumanyan, Ashot V.; New Journal of Chemistry 46 (2022) 18041–18047; doi:10.1039/D2NJ03872B

data_7061780
_publ_section_title
;
 Siloxane-containing derivatives of benzoic acid: chemical transformation
 of the carboxyl group
;
_journal_issue                   37
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              18041
_journal_page_last               18047
_journal_paper_doi               10.1039/D2NJ03872B
_journal_volume                  46
_journal_year                    2022
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C24 H32 N2 O3 Si2'
_chemical_formula_sum            'C24 H32 N2 O3 Si2'
_chemical_formula_weight         452.69
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2022-06-16
_audit_creation_method
;
Olex2 1.5
(compiled 2022.04.07 svn.rca3783a0 for OlexSys, GUI svn.r6498)
;
_audit_update_record
;
2022-08-27 deposited with the CCDC.	2022-09-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.8135(17)
_cell_length_b                   13.780(3)
_cell_length_c                   18.422(4)
_cell_measurement_reflns_used    2736
_cell_measurement_temperature    140
_cell_measurement_theta_max      21.043
_cell_measurement_theta_min      2.548
_cell_volume                     2491.2(9)
_computing_cell_refinement       'SAINT V8.40A (Bruker, 2019)'
_computing_data_collection       'APEX3 v2019.11-0 (Bruker, 2019)'
_computing_data_reduction        'SAINT V8.40A (Bruker, 2019)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2014/6 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      140
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1739
_diffrn_reflns_av_unetI/netI     0.1817
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            17722
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.122
_diffrn_reflns_theta_min         1.845
_diffrn_source                   'sealed tube'
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.169
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.5401
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1413 before and 0.0824 after correction.
The Ratio of minimum to maximum transmission is 0.7247.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_description       block
_exptl_crystal_F_000             968
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.932
_refine_diff_density_min         -0.315
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.1(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     285
_refine_ls_number_reflns         4937
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.1907
_refine_ls_R_factor_gt           0.1017
_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^)+5.9100P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1821
_refine_ls_wR_factor_ref         0.2195
_reflns_Friedel_coverage         0.767
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                2577
_reflns_number_total             4937
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2nj03872b4.cif
_cod_data_source_block           ae652_o
_cod_depositor_comments
'Adding full bibliography for 7061778--7061786.cif.'
_cod_original_cell_volume        2491.3(8)
_cod_database_code               7061780
_shelxl_version_number           2014/6
_shelx_estimated_absorpt_t_max   0.980
_shelx_estimated_absorpt_t_min   0.962
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.9(5)
 0.1(5)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3.a Secondary CH2 refined with riding coordinates:
 C10(H10A,H10B), C22(H22A,H22B)
3.b Aromatic/amide H refined with riding coordinates:
 N1(H1), N2(H2), C7(H7), C8(H8), C16(H16), C5(H5), C19(H19), C4(H4), C20(H20),
 C17(H17), C11(H11), C23(H23)
3.c X=CH2 refined with riding coordinates:
 C24(H24A,H24B), C12(H12A,H12B)
3.d Idealised Me refined as rotating group:
 C2(H2A,H2B,H2C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C), C1(H1A,H1B,H1C)
;
_shelx_res_checksum              96286
_olex2_submission_special_instructions 'No special instructions were received'