Structure-reactivity correlations of the abnormal Beckmann reaction of dihydrolevoglucosenone oxime
Alhifthi, Amani; Harris, Benjamin L.; Goerigk, Lars; White, Jonathan; Williams, Spencer J.; Organic & Biomolecular Chemistry  (2017) –; doi:10.1039/C7OB02499A

data_7155983
_publ_section_title
;
 Structure-reactivity correlations of the abnormal Beckmann reaction of
 dihydrolevoglucosenone oxime
;
_journal_name_full               'Organic &amp; Biomolecular Chemistry'
_journal_paper_doi               10.1039/C7OB02499A
_journal_year                    2017
_chemical_absolute_configuration rmad
_chemical_formula_sum            'C12 H12 N2 O5'
_chemical_formula_weight         264.24
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2017-10-06 deposited with the CCDC.
2017-11-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.7738(2)
_cell_length_b                   11.4773(3)
_cell_length_c                   14.8982(4)
_cell_measurement_reflns_used    3192
_cell_measurement_temperature    130.00(10)
_cell_measurement_theta_max      76.1760
_cell_measurement_theta_min      4.8530
_cell_volume                     1158.26(6)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    shelxt
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      130.00(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            Atlas
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0262
_diffrn_reflns_av_unetI/netI     0.0257
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            6221
_diffrn_reflns_point_group_measured_fraction_full 0.969
_diffrn_reflns_point_group_measured_fraction_max 0.930
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         76.976
_diffrn_reflns_theta_min         4.864
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    1.020
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.77639
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.515
_exptl_crystal_description       rod
_exptl_crystal_F_000             552
_exptl_crystal_size_max          0.407
_exptl_crystal_size_mid          0.159
_exptl_crystal_size_min          0.071
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.285
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details
;
 Flack x determined using 781 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.17(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     172
_refine_ls_number_reflns         2287
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0330
_refine_ls_R_factor_gt           0.0298
_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^)+(0.0478P)^2^+0.0277P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0759
_refine_ls_wR_factor_ref         0.0795
_reflns_Friedel_coverage         0.606
_reflns_Friedel_fraction_full    0.925
_reflns_Friedel_fraction_max     0.845
_reflns_number_gt                2133
_reflns_number_total             2287
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ob02499a2.cif
_cod_data_source_block           cmpd4
_cod_database_code               7155983
_shelx_shelxl_version_number     2016/6
_oxdiff_exptl_absorpt_empirical_full_min 0.684
_oxdiff_exptl_absorpt_empirical_full_max 1.232
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_shelx_res_checksum              44524