Structure–Property Relationships of Dibenzylidenecyclohexanones
Fomina, Marina V.; Vatsadze, Sergey Z.; Freidzon, Alexandra Ya.; Kuz’mina, Lyudmila G.; Moiseeva, Anna A.; Starostin, Roman O.; Nuriev, Vyacheslav N.; Gromov, Sergey P.; ACS Omega 7 (2022) 10087–10099; doi:10.1021/acsomega.1c06129

data_4519423
_publ_section_title
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 Structure--Property Relationships of Dibenzylidenecyclohexanones
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_journal_issue                   12
_journal_name_full               'ACS Omega'
_journal_page_first              10087
_journal_page_last               10099
_journal_paper_doi               10.1021/acsomega.1c06129
_journal_volume                  7
_journal_year                    2022
_chemical_formula_moiety         'C20 H18 O'
_chemical_formula_sum            'C20 H18 O'
_chemical_formula_weight         274.34
_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             2016-09-26
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 115.2690(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.4669(3)
_cell_length_b                   18.2488(7)
_cell_length_c                   9.3371(3)
_cell_measurement_reflns_used    6091
_cell_measurement_temperature    170.15
_cell_measurement_theta_max      30.468
_cell_measurement_theta_min      2.232
_cell_volume                     1458.72(9)
_computing_cell_refinement       'SAINT v7.60A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.60A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS-1997 (Sheldrick, 2008)'
_diffrn_ambient_temperature      170.15
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0240
_diffrn_reflns_av_unetI/netI     0.0216
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            14940
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         29.00
_diffrn_reflns_theta_min         2.38
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.075
_exptl_absorpt_correction_T_max  0.7461
_exptl_absorpt_correction_T_min  0.6746
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.0445 before and 0.0360 after correction.
The Ratio of minimum to maximum transmission is 0.9042.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.249
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.323
_refine_diff_density_min         -0.229
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3830
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0483
_refine_ls_R_factor_gt           0.0403
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0645P)^2^+0.2314P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1082
_refine_ls_wR_factor_ref         0.1122
_reflns_number_gt                3227
_reflns_number_total             3830
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ao1c06129_si_001.cif
_cod_data_source_block           p21c
_cod_database_code               4519423
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B)
2.b Aromatic/amide H refined with riding coordinates:
 C7(H7), C9(H9), C10(H10), C11(H11), C12(H12), C13(H13), C7A(H7A), C9A(H9A),
 C10A(H10A), C11A(H11A), C12A(H12A), C13A(H13A)
;
_olex2_submission_special_instructions 'No special instructions were received'