Conformationally Locked Tolans, β-Sheet Structures, and Photophysical Properties.
Hong, Jung-Ho; Atta, Ananta Kumar; Jung, Kwang-Bok; Kim, Seul-Bi; Heo, Jungseok; Cho, Dong-Gyu; Organic letters 17 (2015) 6222–6225; doi:10.1021/acs.orglett.5b03205

data_1555473
_publ_section_title
;
 Conformationally Locked Tolans, \b-Sheet Structures, and Photophysical
 Properties.
;
_journal_issue                   24
_journal_name_full               'Organic letters'
_journal_page_first              6222
_journal_page_last               6225
_journal_paper_doi               10.1021/acs.orglett.5b03205
_journal_volume                  17
_journal_year                    2015
_chemical_formula_sum            'C21 H19 N O5'
_chemical_formula_weight         365.37
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_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                 106.094(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.3725(10)
_cell_length_b                   21.712(2)
_cell_length_c                   9.3146(10)
_cell_measurement_temperature    296(2)
_cell_volume                     1821.2(3)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_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  0.1127
_diffrn_reflns_av_sigmaI/netI    0.0952
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            27136
_diffrn_reflns_theta_full        28.33
_diffrn_reflns_theta_max         28.33
_diffrn_reflns_theta_min         2.26
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.438
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2002)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.333
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.270
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.281
_refine_diff_density_min         -0.182
_refine_diff_density_rms         0.053
_refine_ls_extinction_coef       0.0050(15)
_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   0.965
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         4531
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.965
_refine_ls_R_factor_all          0.1887
_refine_ls_R_factor_gt           0.0621
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0868P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1486
_refine_ls_wR_factor_ref         0.2009
_reflns_number_gt                1741
_reflns_number_total             4531
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol5b03205_si_002.cif
_cod_data_source_block           cnu1018
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1555473