Coplanar Oligo(p-phenylenedisilenylene)s as Si═Si Analogues of Oligo(p-phenylenevinylene)s: Evidence for Extended π-Conjugation through the Carbon and Silicon π-Frameworks.
Li, Liangchun; Matsuo, Tsukasa; Hashizume, Daisuke; Fueno, Hiroyuki; Tanaka, Kazuyoshi; Tamao, Kohei; Journal of the American Chemical Society 137 (2015) 15026–15035; doi:10.1021/jacs.5b10113

data_4129743
_publ_section_title
;
 Coplanar Oligo(p-phenylenedisilenylene)s as Si&#x2550;Si Analogues of
 Oligo(p-phenylenevinylene)s: Evidence for Extended \p-Conjugation through
 the Carbon and Silicon \p-Frameworks.
;
_journal_issue                   47
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15026
_journal_page_last               15035
_journal_paper_doi               10.1021/jacs.5b10113
_journal_volume                  137
_journal_year                    2015
_chemical_formula_moiety         'C72 H108 O2 Si2'
_chemical_formula_sum            'C72 H108 O2 Si2'
_chemical_formula_weight         1061.76
_chemical_name_common            HexOMEind-DSM
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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                79.962(6)
_cell_angle_beta                 87.970(8)
_cell_angle_gamma                66.481(5)
_cell_formula_units_Z            1
_cell_length_a                   10.7674(19)
_cell_length_b                   11.3808(18)
_cell_length_c                   14.553(3)
_cell_measurement_reflns_used    4580
_cell_measurement_temperature    293
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.2
_cell_volume                     1609.0(5)
_computing_cell_refinement       CrystalClear
_computing_data_collection       CrystalClear
_computing_data_reduction        CrystalClear
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Rigaku AFC-10 with Saturn724+ CCD'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_monochromator  cofocal
_diffrn_radiation_source         'fine-focus rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0266
_diffrn_reflns_av_sigmaI/netI    0.0348
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            19250
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.39
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9902
_exptl_absorpt_correction_T_min  0.9711
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 MULABS - Empirical Correction for Absorption Anisotropy.
 R.H. Blessing, Acta Crystallogr., Sect. A. 51, 33-38 (1995).
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.096
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     381
_refine_ls_number_reflns         7244
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0663
_refine_ls_R_factor_gt           0.0493
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1414
_refine_ls_wR_factor_ref         0.1535
_reflns_number_gt                5353
_reflns_number_total             7244
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja5b10113_si_003.cif
_cod_data_source_block           HexOMEind-DSM
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_database_code               4129743