Interplay between n→ π* Interactions and Dynamic Covalent Bonds: Quantification and Modulation by Solvent Effects.
Zheng, Hao; Ye, Hebo; Yu, Xiaoxia; You, Lei; Journal of the American Chemical Society 141 (2019) 8825–8833; doi:10.1021/jacs.9b01006

data_4127570
_publ_section_title
;
 Interplay between n\\rightarrow \p* Interactions and Dynamic Covalent
 Bonds: Quantification and Modulation by Solvent Effects.
;
_journal_issue                   22
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8825
_journal_page_last               8833
_journal_paper_doi               10.1021/jacs.9b01006
_journal_volume                  141
_journal_year                    2019
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C14 H12 O2'
_chemical_formula_sum            'C14 H12 O2'
_chemical_formula_weight         212.24
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2018-07-14
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 108.663(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.6256(4)
_cell_length_b                   7.4766(3)
_cell_length_c                   9.9777(5)
_cell_measurement_reflns_used    5121
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.414
_cell_measurement_theta_min      2.950
_cell_volume                     538.95(5)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_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-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100.15
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_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  0.0254
_diffrn_reflns_av_unetI/netI     0.0250
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6130
_diffrn_reflns_theta_full        25.41
_diffrn_reflns_theta_max         25.41
_diffrn_reflns_theta_min         2.82
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6893
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1173 before and 0.0416 after correction.
The Ratio of minimum to maximum transmission is 0.9250.
The \l/2 correction factor is Not present.
;
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             224
_refine_diff_density_max         0.244
_refine_diff_density_min         -0.256
_refine_diff_density_rms         0.101
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.1(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.294
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     146
_refine_ls_number_reflns         1925
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.294
_refine_ls_R_factor_all          0.0294
_refine_ls_R_factor_gt           0.0269
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0607P)^2^+0.0279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0861
_refine_ls_wR_factor_ref         0.0970
_reflns_number_gt                1906
_reflns_number_total             1925
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja9b01006_si_003.cif
_cod_data_source_block           1(OMe)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        538.95(4)
_cod_database_code               4127570
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C4(H4), C5(H5), C8(H8), C10(H10), C12(H12), C13(H13), C14(H14),
 C16(H16)
2.b Idealised Me refined as rotating group:
 C15(H15A,H15B,H15C)
;
_olex2_submission_special_instructions 'No special instructions were received'