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_7061785
_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_formula_moiety         'C28 H30 N4 O3 Si2'
_chemical_formula_sum            'C28 H30 N4 O3 Si2'
_chemical_formula_weight         526.74
_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     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                 98.2670(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.2575(3)
_cell_length_b                   7.9709(2)
_cell_length_c                   28.4737(7)
_cell_measurement_reflns_used    9805
_cell_measurement_temperature    100
_cell_measurement_theta_max      30.537
_cell_measurement_theta_min      2.655
_cell_volume                     2753.07(12)
_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  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'APEX QUEST'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0636
_diffrn_reflns_av_unetI/netI     0.0388
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       40
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            64472
_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         30.603
_diffrn_reflns_theta_min         2.052
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.165
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.5793
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1488 before and 0.0745 after correction.
The Ratio of minimum to maximum transmission is 0.7764.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.271
_exptl_crystal_description       block
_exptl_crystal_F_000             1112
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.619
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         8455
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0658
_refine_ls_R_factor_gt           0.0561
_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^)+(0.0629P)^2^+1.7353P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1362
_refine_ls_wR_factor_ref         0.1422
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7212
_reflns_number_total             8455
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2nj03872b4.cif
_cod_data_source_block           ve1792
_cod_depositor_comments
'Adding full bibliography for 7061778--7061786.cif.'
_cod_database_code               7061785
_shelxl_version_number           2014/6
_shelx_estimated_absorpt_t_max   0.982
_shelx_estimated_absorpt_t_min   0.966
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 N1(H1), N3(H3), C9(H9), C6(H6), C7(H7), C10(H10), C18(H18), C21(H21),
 C19(H19), C22(H22), C16(H16), C28(H28), C25(H25), C13(H13), C27(H27), C26(H26),
  C15(H15), C14(H14)
2.b Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C4(H4A,H4B,H4C), C2(H2A,H2B,H2C), C3(H3A,H3B,H3C)
;
_shelx_res_checksum              35998
_olex2_submission_special_instructions 'No special instructions were received'