Elongation of Phenoxide C-O Bonds Due to Formation of Multifold Hydrogen Bonds: Statistical, Experimental, and Theoretical Studies
Naoto Hayashi; Kazuhito Sato; Yuka Sato; Masayuki Iwagami; Naoki Nishimura; Junro Yoshino; Hiroyuki Higuchi; Tohru Sato; Journal of Organic Chemistry 76 (2011) 5747–5758; doi:10.1021/jo200852r

data_4026458
_publ_section_title
;
 Elongation of Phenoxide C-O Bonds Due to Formation of Multifold Hydrogen
 Bonds: Statistical, Experimental, and Theoretical Studies
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5747
_journal_page_last               5758
_journal_paper_doi               10.1021/jo200852r
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C26 H32 N2 O5'
_chemical_formula_weight         452.54
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                101.47(2)
_cell_angle_beta                 105.82(2)
_cell_angle_gamma                79.71(2)
_cell_formula_units_Z            2
_cell_length_a                   9.002(2)
_cell_length_b                   18.560(6)
_cell_length_c                   7.601(2)
_cell_measurement_reflns_used    20
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      12.5
_cell_measurement_theta_min      10
_cell_volume                     1187.0(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'RIGAKU AFC-7S'
_diffrn_measurement_method       w/2q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0305
_diffrn_reflns_av_sigmaI/netI    0.3475
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5868
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.76
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9913
_exptl_absorpt_correction_T_min  0.9913
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_description       prism
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.323
_refine_diff_density_min         -0.306
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.973
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     310
_refine_ls_number_reflns         5421
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.973
_refine_ls_R_factor_all          0.3238
_refine_ls_R_factor_gt           0.0755
_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^)+(0.0984P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1694
_refine_ls_wR_factor_ref         0.2467
_reflns_number_gt                1668
_reflns_number_total             5421
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo200852r_si_002_1.cif
_cod_data_source_block           shelxl_1
_cod_database_code               4026458