The strategy to improve thermal and optical properties of diphenylfluoranthene based on silicon-cored derivatives
Wang, Hua; Liang, Yan; Wang, Yike; Xie, Huanling; Feng, Linglong; Lu, Haifeng; Feng, Shengyu; RSC Advances 4 (2014) 17171–; doi:10.1039/c3ra47751g

data_7235339
_publ_section_title
;
 The strategy to improve thermal and optical properties of
 diphenylfluoranthene based on silicon-cored derivatives
;
_journal_issue                   33
_journal_name_full               'RSC Advances'
_journal_page_first              17171
_journal_paper_doi               10.1039/c3ra47751g
_journal_volume                  4
_journal_year                    2014
_chemical_formula_sum            'C H N O Si'
_chemical_formula_weight         71.12
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        '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                 98.271(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            37
_cell_length_a                   14.380(5)
_cell_length_b                   24.740(9)
_cell_length_c                   11.665(5)
_cell_measurement_temperature    273(2)
_cell_volume                     4107(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_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  0.0520
_diffrn_reflns_av_sigmaI/netI    0.1005
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            13368
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.65
_exptl_absorpt_coefficient_mu    0.337
_exptl_crystal_density_diffrn    1.064
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1332
_refine_diff_density_max         0.371
_refine_diff_density_min         -0.190
_refine_diff_density_rms         0.045
_refine_ls_extinction_coef       0.0019(6)
_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   0.950
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     535
_refine_ls_number_reflns         7036
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.950
_refine_ls_R_factor_all          0.1574
_refine_ls_R_factor_gt           0.0664
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0988P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1610
_refine_ls_wR_factor_ref         0.2085
_reflns_number_gt                3190
_reflns_number_total             7036
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra47751g2.cif
_cod_data_source_block           p
_cod_database_code               7235339