Absolute asymmetric photocyclization of triisopropylbenzophenone derivatives in crystals and their morphological changes.
Koshima, Hideko; Fukano, Michitaro; Ojima, Naoko; Johmoto, Kohei; Uekusa, Hidehiro; Shiro, Motoo; The Journal of organic chemistry 79 (2014) 3088–3093; doi:10.1021/jo5000913

data_4029253
_publ_section_title
;
 Absolute asymmetric photocyclization of triisopropylbenzophenone
 derivatives in crystals and their morphological changes.
;
_journal_issue                   7
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              3088
_journal_page_last               3093
_journal_paper_doi               10.1021/jo5000913
_journal_volume                  79
_journal_year                    2014
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C30 H35 N O2'
_chemical_formula_sum            'C30 H35 N O2'
_chemical_formula_weight         441.61
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      33
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 90.0000
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   26.203(3)
_cell_length_b                   8.9809(9)
_cell_length_c                   11.0665(11)
_cell_measurement_reflns_used    19948
_cell_measurement_temperature    296
_cell_measurement_theta_max      68.17
_cell_measurement_theta_min      3.38
_cell_volume                     2604.2(5)
_computing_cell_refinement       'PROCESS-AUTO (Rigaku, 1998)'
_computing_data_collection       'PROCESS-AUTO (Rigaku, 1998)'
_computing_data_reduction        'CrystalStructure (Rigaku, 2000-2010)'
_computing_molecular_graphics    'ORTEP (Johnson, 1976)'
_computing_publication_material  'CrystalStructure (Rigaku, 2000-2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      296
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0397
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            25102
_diffrn_reflns_theta_full        68.21
_diffrn_reflns_theta_max         68.21
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.538
_exptl_absorpt_correction_T_max  0.886
_exptl_absorpt_correction_T_min  0.630
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.126
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             952.00
_exptl_crystal_size_max          0.588
_exptl_crystal_size_mid          0.376
_exptl_crystal_size_min          0.224
_refine_diff_density_max         0.220
_refine_diff_density_min         -0.270
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     300
_refine_ls_number_reflns         2493
_refine_ls_number_restraints     15
_refine_ls_R_factor_gt           0.0514
_refine_ls_shift/su_max          0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0829P)^2^+0.5845P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1477
_reflns_number_gt                2079
_reflns_number_total             2493
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            jo5000913_si_004.cif
_cod_data_source_block           RGK1944[2(m-benzyl)]
_cod_depositor_comments
;Adding full bibliography for
 ./tmp-cod-update-bibliographies-12971/cifs/4029253.cif.
;
_cod_database_code               4029253