Large Transition State Stabilization from a Weak Hydrogen Bond
Vik, Erik C.; Li, Ping; Maier, Josef M.; Madukwe, Daniel O.; Rassolov, Vitaly A.; Pellechia, Perry J.; Masson, Eric; Shimizu, Ken D.; Chemical Science  (2020) –; doi:10.1039/D0SC02806A

data_1558475
_publ_section_title
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 Large Transition State Stabilization from a Weak Hydrogen Bond
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_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D0SC02806A
_journal_year                    2020
_chemical_formula_moiety         'C15 H13 N O3'
_chemical_formula_sum            'C15 H13 N O3'
_chemical_formula_weight         255.26
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_date             2016-12-01
_audit_creation_method
;
Olex2 1.2
(compiled 2016.11.30 svn.r3356 for OlexSys, GUI svn.r5269)
;
_audit_update_record
;
2020-05-11 deposited with the CCDC.	2020-07-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 92.303(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.7032(5)
_cell_length_b                   6.6627(3)
_cell_length_c                   16.9382(8)
_cell_measurement_reflns_used    9106
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.030
_cell_measurement_theta_min      2.407
_cell_volume                     1206.92(10)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_collection       'Bruker APEX3 v2016.5-0 (Bruker, 2016)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_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    'XT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'Bruker PHOTON-100 area detector'
_diffrn_detector_area_resol_mean 10.4
_diffrn_detector_type            'CMOS area detector'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 QUEST'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0454
_diffrn_reflns_av_unetI/netI     0.0223
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            56388
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        30.180
_diffrn_reflns_theta_max         30.180
_diffrn_reflns_theta_min         2.211
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_T_max  0.7447
_exptl_absorpt_correction_T_min  0.7240
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1229 before and 0.0601 after correction.
The Ratio of minimum to maximum transmission is 0.9722.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.405
_exptl_crystal_description       needle
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.388
_refine_diff_density_min         -0.214
_refine_diff_density_rms         0.047
_refine_ls_extinction_coef       0.015(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3575
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0525
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0437P)^2^+0.5302P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0967
_refine_ls_wR_factor_ref         0.1027
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2970
_reflns_number_total             3575
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0sc02806a2.cif
_cod_data_source_block           ecv1_93_a
_cod_database_code               1558475
_shelx_estimated_absorpt_t_max   0.981
_shelx_estimated_absorpt_t_min   0.950
_olex2_refinement_description
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1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2. Shared sites
{C10A, C10B}
{C11A, C15B}
{C12A, C14B}
{C13A, C13B}
{C14A, C12B}
{C15A, C11B}
3. Restrained distances
 O3A-H3A \\sim O3B-H3B
 with sigma of 0.02
4. Uiso/Uaniso restraints and constraints
Uanis(C10A) = Uanis(C10B)
Uanis(C11A) = Uanis(C15B)
Uanis(C12A) = Uanis(C14B)
Uanis(C13A) = Uanis(C13B)
Uanis(C14A) = Uanis(C12B)
Uanis(C15A) = Uanis(C11B)
5. Others
 Sof(O3B)=Sof(H3B)=Sof(C10B)=Sof(C11B)=Sof(C12B)=Sof(H12B)=Sof(C13B)=Sof(H13B)=
 Sof(C14B)=Sof(H14B)=Sof(C15B)=Sof(H15B)=1-FVAR(1)
 Sof(O3A)=Sof(H3A)=Sof(C10A)=Sof(C11A)=Sof(C12A)=Sof(H12A)=Sof(C13A)=Sof(H13A)=
 Sof(C14A)=Sof(H14A)=Sof(C15A)=Sof(H15A)=FVAR(1)
6.a Ternary CH refined with riding coordinates:
 C2(H2), C3(H3), C6(H6), C7(H7)
6.b Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B)
6.c Aromatic/amide H refined with riding coordinates:
 C8(H8), C9(H9), C12A(H12A), C13A(H13A), C14A(H14A), C15A(H15A), C12B(H12B),
 C13B(H13B), C14B(H14B), C15B(H15B)
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_shelx_res_checksum              20665
_shelx_shelxl_version_number     2016/6
_olex2_submission_special_instructions 'No special instructions were received'