Synthesis and electronic properties of isotruxene-derived star-shaped ladder-type oligophenylenes: bandgap tuning with two-dimensional conjugation.
Yang, Jye-Shane; Huang, Hsin-Hau; Liu, Yi-Hung; Peng, Shie-Ming; Organic letters 11 (2009) 4942–4945; doi:10.1021/ol9021035

data_1504246
_publ_section_title
;
 Synthesis and electronic properties of isotruxene-derived star-shaped
 ladder-type oligophenylenes: bandgap tuning with two-dimensional
 conjugation.
;
_journal_issue                   21
_journal_name_full               'Organic letters'
_journal_page_first              4942
_journal_page_last               4945
_journal_paper_doi               10.1021/ol9021035
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C39 H42'
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_cell_angle_beta                 90.00
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_cell_length_a                   10.8889(3)
_cell_length_b                   18.2557(3)
_cell_length_c                   30.5360(6)
_cell_measurement_reflns_used    10581
_cell_measurement_temperature    295(2)
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_computing_cell_refinement
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CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.34d (release 27-02-2009 CrysAlis171 .NET) 
(compiled Feb 27 2009,15:38:38) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_data_collection
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.34d (release 27-02-2009 CrysAlis171 .NET) 
(compiled Feb 27 2009,15:38:38) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_data_reduction
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.34d (release 27-02-2009 CrysAlis171 .NET) 
(compiled Feb 27 2009,15:38:38) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Oxford Diffraction Gemini A'
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0261
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_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            23739
_diffrn_reflns_theta_full        67.99
_diffrn_reflns_theta_max         67.99
_diffrn_reflns_theta_min         2.89
_exptl_absorpt_coefficient_mu    0.466
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.86717
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.33.34d (release 27-02-2009 CrysAlis171 .NET) 
(compiled Feb 27 2009,15:38:38) 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_density_diffrn    1.118
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             2208
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
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_refine_ls_extinction_method     none
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_refine_ls_number_parameters     352
_refine_ls_number_reflns         5519
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0626
_refine_ls_R_factor_gt           0.0443
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0868P)^2^+0.1118P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1264
_refine_ls_wR_factor_ref         0.1367
_reflns_number_gt                3985
_reflns_number_total             5519
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol9021035_si_001.cif
_cod_data_source_block           for_S4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               1504246