Intramolecular Paterno-Buchi reaction of atropisomeric alpha-oxoamides in solution and in the solid-state
Ramya Raghunathan; Elango Kumarasamy; Akila Iyer; Angel Ugrinov; J. Sivaguru; Chem.Commun. 49 (2013) 8713–; doi:10.1039/c3cc44281k

data_7109760
_publ_section_title
;
 Intramolecular Paterno-Buchi reaction of atropisomeric alpha-oxoamides in
 solution and in the solid-state
;
_journal_name_full               Chem.Commun.
_journal_page_first              8713
_journal_paper_doi               10.1039/c3cc44281k
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety         'C23 H25 N O3'
_chemical_formula_sum            'C23 H25 N O3'
_chemical_formula_weight         363.44
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_symmetry_cell_setting           orthorhombic
_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_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.6205(2)
_cell_length_b                   10.6084(3)
_cell_length_c                   24.2862(7)
_cell_measurement_reflns_used    6438
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      66.57
_cell_measurement_theta_min      3.64
_cell_volume                     1963.33(9)
_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      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0221
_diffrn_reflns_av_sigmaI/netI    0.0242
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            8473
_diffrn_reflns_theta_full        66.54
_diffrn_reflns_theta_max         66.54
_diffrn_reflns_theta_min         3.64
_exptl_absorpt_coefficient_mu    0.646
_exptl_absorpt_correction_T_max  0.7528
_exptl_absorpt_correction_T_min  0.6673
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Acta Cryst (1995). A51, 33-38'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.230
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.119
_refine_diff_density_min         -0.151
_refine_diff_density_rms         0.031
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.08(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         3399
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0258
_refine_ls_R_factor_gt           0.0252
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0305P)^2^+0.3198P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0640
_refine_ls_wR_factor_ref         0.0645
_reflns_number_gt                3337
_reflns_number_total             3399
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc44281k.txt
_cod_data_source_block           (M)_1b
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7109760