Visible-light induced isoindoles formation to trigger intermolecular diels-alder reactions in the presence of air.
Lin, Chao; Zhen, Le; Cheng, Yong; Du, Hong-Jin; Zhao, Hui; Wen, Xiaoan; Kong, Ling-Yi; Xu, Qing-Long; Sun, Hongbin; Organic letters 17 (2015) 2684–2687; doi:10.1021/acs.orglett.5b01078

data_1519656
_publ_section_title
;
 Visible-light induced isoindoles formation to trigger intermolecular
 diels-alder reactions in the presence of air.
;
_journal_issue                   11
_journal_name_full               'Organic letters'
_journal_page_first              2684
_journal_page_last               2687
_journal_paper_doi               10.1021/acs.orglett.5b01078
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C25 H20 N2 O2'
_chemical_formula_weight         380.43
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 93.638(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.373(2)
_cell_length_b                   16.581(3)
_cell_length_c                   8.8083(16)
_cell_measurement_reflns_used    4054
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.30
_cell_measurement_theta_min      2.46
_cell_volume                     1949.2(6)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0230
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            10656
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.53
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9820
_exptl_absorpt_correction_T_min  0.9788
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.296
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.154
_refine_diff_density_min         -0.148
_refine_diff_density_rms         0.041
_refine_ls_extinction_coef       0.0113(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         3434
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0463
_refine_ls_R_factor_gt           0.0364
_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^)+(0.0666P)^2^+0.2829P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1043
_refine_ls_wR_factor_ref         0.1201
_reflns_number_gt                2810
_reflns_number_total             3434
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b01078_si_002.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 1519655--1519656.cif.
;
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               1519656