Synthesis and optical properties of dioxolane-functionalized hexacenes and heptacenes.
Bruzek, Matthew J.; Anthony, John E.; Organic letters 16 (2014) 3608–3610; doi:10.1021/ol501373s

data_1516833
_publ_section_title
;
 Synthesis and optical properties of dioxolane-functionalized hexacenes
 and heptacenes.
;
_journal_issue                   13
_journal_name_full               'Organic letters'
_journal_page_first              3608
_journal_page_last               3610
_journal_paper_doi               10.1021/ol501373s
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C48 H48 O6'
_chemical_formula_sum            'C48 H48 O6'
_chemical_formula_weight         720.86
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                95.527(3)
_cell_angle_beta                 97.680(2)
_cell_angle_gamma                99.574(3)
_cell_formula_units_Z            1
_cell_length_a                   6.0156(2)
_cell_length_b                   8.3441(3)
_cell_length_c                   18.7234(6)
_cell_measurement_reflns_used    3967
_cell_measurement_temperature    90.0(2)
_cell_measurement_theta_max      66.45
_cell_measurement_theta_min      4.80
_cell_volume                     911.63(5)
_computing_cell_refinement       APEX2
_computing_data_collection       'APEX2 (Bruker-AXS, 2006)'
_computing_data_reduction        APEX2
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material
; 
SHELX-97 (Sheldrick, 2008) and local procedures 
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90.0(2)
_diffrn_detector_area_resol_mean 5.6
_diffrn_measured_fraction_theta_full 0.908
_diffrn_measured_fraction_theta_max 0.908
_diffrn_measurement_device_type  'Bruker X8 Proteum diffractometer'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'graded multilayer optics'
_diffrn_radiation_source         'fine-focus rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0643
_diffrn_reflns_av_sigmaI/netI    0.0335
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4297
_diffrn_reflns_theta_full        67.53
_diffrn_reflns_theta_max         67.53
_diffrn_reflns_theta_min         2.40
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.677
_exptl_absorpt_correction_T_max  0.907
_exptl_absorpt_correction_T_min  0.627
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs in APEX2 (BrukerAXS, 2006)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.313
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         4297
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0572
_refine_ls_R_factor_gt           0.0536
_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^)+(0.0488P)^2^+1.5409P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1518
_refine_ls_wR_factor_ref         0.1536
_reflns_number_gt                3977
_reflns_number_total             4297
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ol501373s_si_003.cif
_cod_data_source_block           x12417
_cod_database_code               1516833