Inorganic salt-assisted assembly of anionic π-conjugated rings enabling 7Li NMR-based evaluation of antiaromaticity
Ito, Shotaro; Ishii, Youichi; Kuwabara, Takuya; Dalton Transactions  (2022) –; doi:10.1039/D2DT02649J

data_7711514
_publ_section_title
;
 Inorganic salt-assisted assembly of anionic \p-conjugated rings enabling
 7Li NMR-based evaluation of antiaromaticity
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D2DT02649J
_journal_year                    2022
_chemical_formula_moiety         'C36 H56 Li2 O5 Si'
_chemical_formula_sum            'C36 H56 Li2 O5 Si'
_chemical_formula_weight         610.77
_space_group_crystal_system      monoclinic
_space_group_IT_number           7
_space_group_name_Hall           'P -2yc'
_space_group_name_H-M_alt        'P 1 c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2022-07-19 deposited with the CCDC.	2022-10-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.085(5)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.332(3)
_cell_length_b                   10.610(3)
_cell_length_c                   17.742(5)
_cell_measurement_reflns_used    5678
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      31.1704
_cell_measurement_theta_min      2.2389
_cell_volume                     1749.8(9)
_computing_cell_refinement       'RIGAKU CrystalClear'
_computing_data_collection       'RIGAKU CrystalClear'
_computing_data_reduction        'RIGAKU CrystalClear'
_computing_molecular_graphics    'Yadokari-XG 2009(Wakita Nemoto et al.)'
_computing_publication_material  'Yadokari-XG 2009(Wakita,Nemoto et al.)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku VariMax Saturn'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'rotating-anode X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0364
_diffrn_reflns_av_unetI/netI     0.0619
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13870
_diffrn_reflns_point_group_measured_fraction_full 0.821
_diffrn_reflns_point_group_measured_fraction_max 0.800
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.483
_diffrn_reflns_theta_min         3.594
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8715
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            Black
_exptl_crystal_density_diffrn    1.159
_exptl_crystal_description       Prism
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.120
_refine_diff_density_max         0.540
_refine_diff_density_min         -0.314
_refine_diff_density_rms         0.058
_refine_ls_abs_structure_details
;
 Flack x determined using 1318 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.29(8)
_refine_ls_extinction_coef       0.059(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     400
_refine_ls_number_reflns         6403
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0515
_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^)+(0.0715P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1180
_refine_ls_wR_factor_ref         0.1280
_reflns_Friedel_coverage         0.603
_reflns_Friedel_fraction_full    0.645
_reflns_Friedel_fraction_max     0.603
_reflns_number_gt                5102
_reflns_number_total             6403
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2dt02649j2.cif
_cod_data_source_block           ydkr
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 
;
_cod_original_cell_volume        1749.7(8)
_cod_original_sg_symbol_H-M      'P c'
_cod_database_code               7711514
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.978
_shelx_estimated_absorpt_t_max   0.987
_shelx_res_checksum              79326