Unpicking the determinants of amide NH••O=C hydrogen bond strength with diphenylacetylene molecular balances
Luccarelli, James; Jones, Ian M.; Thompson, Sam; Hamilton, Andrew D.; Org. Biomol. Chem.  (2017) –; doi:10.1039/C7OB02026K

data_7155901
_publ_section_title
;
 Unpicking the determinants of amide NH&#x2022;&#x2022;O=C hydrogen bond
 strength with diphenylacetylene molecular balances
;
_journal_name_full               'Org. Biomol. Chem.'
_journal_paper_doi               10.1039/C7OB02026K
_journal_year                    2017
_chemical_formula_moiety         'C30 H22 N2 O4 '
_chemical_formula_sum            'C30 H22 N2 O4'
_chemical_formula_weight         474.51
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      7
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 c 1'
_audit_update_record
;
2012-03-15 deposited with the CCDC.
2017-09-27 downloaded from the CCDC.
;
_cell_angle_alpha                90.0000
_cell_angle_beta                 107.1639(19)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   12.0339(12)
_cell_length_b                   12.2457(12)
_cell_length_c                   8.4183(8)
_cell_measurement_reflns_used    10480
_cell_measurement_temperature    223.1
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     1185.3(2)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        CrystalStructure
_computing_publication_material  'CrystalStructure 3.8'
_computing_structure_refinement  SHELXL
_computing_structure_solution    SHELXS97
_diffrn_detector_area_resol_mean 6.85
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku SCXmini'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.043
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            12147
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             496.00
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.13
_refine_diff_density_min         -0.18
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881. 2654 Friedel Pairs'
_refine_ls_abs_structure_Flack   2.2(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    refall
_refine_ls_number_parameters     334
_refine_ls_number_reflns         5375
_refine_ls_R_factor_gt           0.0520
_refine_ls_shift/su_max          0.0000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0453P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1082
_reflns_number_gt                3725
_reflns_number_total             5375
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c7ob02026k2.cif
_cod_data_source_block           '_User-defined2'
_cod_original_formula_sum        'C30 H22 N2 O4 '
_cod_database_code               7155901