Two Thin Film Polymorphs of the Singlet Fission Compound 1,3-Diphenylisobenzofuran
Ryerson, Joseph L.; Schrauben, Joel N.; Ferguson, Andrew J.; Sahoo, Subash Chandra; Naumov, Panče; Havlas, Zdenĕk; Michl, Josef; Nozik, Arthur J.; Johnson, Justin C.; The Journal of Physical Chemistry C 118 (2014) 12121–; doi:10.1021/jp502122d

data_1516473
_publ_section_title
;
 Two Thin Film Polymorphs of the Singlet Fission Compound
 1,3-Diphenylisobenzofuran
;
_journal_issue                   23
_journal_name_full               'The Journal of Physical Chemistry C'
_journal_page_first              12121
_journal_paper_doi               10.1021/jp502122d
_journal_volume                  118
_journal_year                    2014
_chemical_formula_moiety         'C20 H14 O'
_chemical_formula_sum            'C20 H14 O'
_chemical_formula_weight         270.31
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 1 2/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                 106.215(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.998(5)
_cell_length_b                   5.590(2)
_cell_length_c                   20.271(8)
_cell_measurement_temperature    298(2)
_cell_volume                     1414.3(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_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  0.0160
_diffrn_reflns_av_sigmaI/netI    0.0159
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            10479
_diffrn_reflns_theta_full        27.59
_diffrn_reflns_theta_max         27.59
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.985
_exptl_absorpt_correction_T_min  0.973
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   muti-scan
_exptl_crystal_density_diffrn    1.270
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             568
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.158
_refine_diff_density_rms         0.027
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         3239
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0491
_refine_ls_R_factor_gt           0.0367
_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^)+(0.0464P)^2^+0.2249P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0939
_refine_ls_wR_factor_ref         0.1031
_reflns_number_gt                2571
_reflns_number_total             3239
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jp502122d_si_002.cif
_cod_data_source_block           ss4
_cod_depositor_comments
'Adding full bibliography for 1516472--1516473.cif.'
_cod_original_cell_volume        1414.2(10)
_cod_original_sg_symbol_H-M      'P 2/c'
_cod_database_code               1516473