Tetrahydro[5]helicene-based full-color emission dyes in both solution and solid states: synthesis, structures, photophysical properties and optical waveguide applications
Meng Li; Wei Yao; Jun-Dao Chen; Hai-Yan Lu; YongSheng Zhao; Chuan-Feng Chen; Journal of Materials Chemistry C 2 (2014) 8373–8380; doi:10.1039/C4TC01562B

data_7233881
_publ_section_title
;
 Tetrahydro[5]helicene-based full-color emission dyes in both solution and
 solid states: synthesis, structures, photophysical properties and optical
 waveguide applications
;
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              8373
_journal_page_last               8380
_journal_paper_doi               10.1039/C4TC01562B
_journal_volume                  2
_journal_year                    2014
_chemical_formula_moiety         'C43 H39 N O6'
_chemical_formula_sum            'C43 H39 N O6'
_chemical_formula_weight         665.75
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 109.695(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.701(5)
_cell_length_b                   14.227(5)
_cell_length_c                   18.390(7)
_cell_measurement_reflns_used    9796
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.0128
_cell_measurement_theta_min      1.4313
_cell_volume                     3375(2)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics
;
Mercury: visualization and analysis of crystal structures, C. F. Macrae,
P. R. Edgington, P. McCabe, E. Pidcock, G. P. Shields, R. Taylor,
M. Towler and J. van de Streek, J. Appl. Cryst., 39, 453-457, 2006.
;
_computing_publication_material  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELX-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELX-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_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  0.0650
_diffrn_reflns_av_sigmaI/netI    0.0884
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            12274
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.4763
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.310
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1408
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.258
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.214
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     476
_refine_ls_number_reflns         5930
_refine_ls_number_restraints     64
_refine_ls_restrained_S_all      1.213
_refine_ls_R_factor_all          0.1600
_refine_ls_R_factor_gt           0.1245
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0597P)^2^+5.1207P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2267
_refine_ls_wR_factor_ref         0.2475
_reflns_number_gt                4305
_reflns_number_total             5930
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1000002.cif
_cod_data_source_block           PCOD1000002
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7233881