Substituent-Induced Switch of the Role of Charge-Transfer Complexes in the Diels-Alder Reactions of o-Chloranil and Styrenes
Sergiy V. Rosokha; Vasiliy Korotchenko; Charlotte L. Stern; Vladimir Zaitsev; Jeremy T. Ritzert; Journal of Organic Chemistry 77 (2012) 5971–5981; doi:10.1021/jo300614k

data_4027295
_publ_section_title
;
 Substituent-Induced Switch of the Role of Charge-Transfer Complexes in
 the Diels-Alder Reactions of o-Chloranil and Styrenes
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              5971
_journal_page_last               5981
_journal_paper_doi               10.1021/jo300614k
_journal_volume                  77
_journal_year                    2012
_chemical_formula_moiety         'C14 H10 Cl4 O3 '
_chemical_formula_sum            'C14 H10 Cl4 O3'
_chemical_formula_weight         368.02
_space_group_IT_number           45
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'I 2 -2c'
_symmetry_space_group_name_H-M   'I b a 2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.6597(14)
_cell_length_b                   34.370(4)
_cell_length_c                   7.0803(9)
_cell_measurement_reflns_used    3111
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.00
_cell_measurement_theta_min      2.37
_cell_volume                     2837.4(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0711
_diffrn_reflns_av_sigmaI/netI    0.0739
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       47
_diffrn_reflns_limit_k_min       -48
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            12024
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.839
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.5438
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.723
_exptl_crystal_description       needle
_exptl_crystal_F_000             1488
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.674
_refine_diff_density_min         -0.431
_refine_diff_density_rms         0.125
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.15(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.147
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         3962
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.147
_refine_ls_R_factor_all          0.0686
_refine_ls_R_factor_gt           0.0631
_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^)+(0.0609P)^2^+4.9838P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1431
_refine_ls_wR_factor_ref         0.1470
_reflns_number_gt                3664
_reflns_number_total             3962
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo300614k_si_009.cif
_cod_data_source_block           vas3
_cod_database_code               4027295