Stereoselective Photodimerization of 3-Arylindenones in Solution and in the Solid State.
Uemura, Naohiro; Ishikawa, Hiroki; Tamura, Naoki; Yoshida, Yasushi; Mino, Takashi; Kasashima, Yoshio; Sakamoto, Masami; The Journal of organic chemistry 83 (2018) 2256–2262; doi:10.1021/acs.joc.7b03147

data_4033441
_publ_section_title
;
 Stereoselective Photodimerization of 3-Arylindenones in Solution and in
 the Solid State.
;
_journal_issue                   4
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              2256
_journal_page_last               2262
_journal_paper_doi               10.1021/acs.joc.7b03147
_journal_volume                  83
_journal_year                    2018
_chemical_formula_sum            'C30 H20 O2'
_chemical_formula_weight         412.46
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 96.297(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.9579(11)
_cell_length_b                   17.3275(19)
_cell_length_c                   12.0829(13)
_cell_measurement_reflns_used    4195
_cell_measurement_temperature    173
_cell_measurement_theta_max      27.4878
_cell_measurement_theta_min      2.3508
_cell_volume                     2072.3(4)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'XSHEL (Bruker AXS,2002)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'Phi and Omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0278
_diffrn_reflns_av_unetI/netI     0.0326
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            11787
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.630
_diffrn_reflns_theta_min         2.063
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.95
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.322
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.300
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.270
_refine_diff_density_min         -0.215
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4698
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0500
_refine_ls_R_factor_gt           0.0401
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0466P)^2^+0.5434P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0967
_refine_ls_wR_factor_ref         0.1035
_reflns_number_gt                3881
_reflns_number_total             4698
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo7b03147_si_006.cif
_cod_data_source_block           I
_cod_depositor_comments
'Adding full bibliography for 4033434--4033446.cif.'
_cod_database_code               4033441