Modified Atomic Orbital Overlap: Molecular Level Proof of the Nucleophilic Cleavage Propensity of Dinitrophenol-Based Probes.
Venkateswarulu, Mangili; Kumar, Sunil; Ghosh, Subrata; The Journal of organic chemistry 82 (2017) 4713–4720; doi:10.1021/acs.joc.7b00317

data_4032546
_publ_section_title
;
 Modified Atomic Orbital Overlap: Molecular Level Proof of the
 Nucleophilic Cleavage Propensity of Dinitrophenol-Based Probes.
;
_journal_issue                   9
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4713
_journal_page_last               4720
_journal_paper_doi               10.1021/acs.joc.7b00317
_journal_volume                  82
_journal_year                    2017
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C18 H15 N3 O7 S'
_chemical_formula_sum            'C18 H15 N3 O7 S'
_chemical_formula_weight         417.39
_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
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2016-03-11
_audit_creation_method
;
Olex2 1.2-ac21
(compiled 2015.09.16 svn.r134, GUI svn.r4998)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.5464(7)
_cell_length_b                   9.5617(10)
_cell_length_c                   25.693(2)
_cell_measurement_reflns_used    1499
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.1100
_cell_measurement_theta_min      2.6310
_cell_volume                     1853.9(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 7.9987
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.869
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
--------------------------------------------------------------------------
  1  \w     -7.00 105.00   1.00   38.01    --   26.84  77.00  60.00  112
  2  \w     70.00 103.00   1.00   38.01    --   26.84 178.00 -60.00   33
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0446041000
_diffrn_orient_matrix_UB_12      -0.0084854000
_diffrn_orient_matrix_UB_13      -0.0241526000
_diffrn_orient_matrix_UB_21      0.0261243000
_diffrn_orient_matrix_UB_22      0.0684292000
_diffrn_orient_matrix_UB_23      -0.0074113000
_diffrn_orient_matrix_UB_31      0.0783745000
_diffrn_orient_matrix_UB_32      -0.0272905000
_diffrn_orient_matrix_UB_33      -0.0112358000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0250
_diffrn_reflns_av_unetI/netI     0.0465
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            4173
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         28.35
_diffrn_reflns_theta_min         2.27
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.223
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.892
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
'CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015) Numerical absorption correction based on gaussian integration over a multifaceted crystal model Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm.'
_exptl_crystal_density_diffrn    1.495
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       orthorhombic
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.665
_exptl_crystal_size_mid          0.139
_exptl_crystal_size_min          0.124
_refine_diff_density_max         0.262
_refine_diff_density_min         -0.306
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     264
_refine_ls_number_reflns         3460
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0676
_refine_ls_R_factor_gt           0.0558
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0572P)^2^+0.9053P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1415
_refine_ls_wR_factor_ref         0.1527
_reflns_number_gt                2812
_reflns_number_total             3460
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo7b00317_si_001.cif
_cod_data_source_block           P9
_cod_database_code               4032546
_chemical_oxdiff_formula         'c h n o s'
_reflns_odcompleteness_completeness 98.79
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.32
_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:
 C4(H4), C9(H9), C3(H3), C8(H8), C16(H16), C5(H5), C14(H14), C18(H18), C10(H10)
2.b Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C), C11(H11A,H11B,H11C)
;
_olex2_date_sample_data_collection 2016-03-09
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.347
_oxdiff_exptl_absorpt_empirical_full_min 0.426