Conjugated Polymers in an Arene Sandwich
Anne J. McNeil; Peter Müller; James E. Whitten; Timothy M. Swager; Journal of the American Chemical Society 128 (2006) 12426–12427; doi:10.1021/ja0648099

data_4110922
_publ_section_title
;
 Conjugated Polymers in an Arene Sandwich
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12426
_journal_page_last               12427
_journal_paper_doi               10.1021/ja0648099
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C40 H52 O3 Si2'
_chemical_formula_weight         637.00
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 110.569(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.7499(9)
_cell_length_b                   9.2408(5)
_cell_length_c                   21.8961(10)
_cell_measurement_reflns_used    7711
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.27
_cell_measurement_theta_min      2.39
_cell_volume                     3741.4(3)
_computing_cell_refinement       'SAINT 5 (Bruker-AXS, 2003)'
_computing_data_collection       'SMART 5 (Bruker-AXS, 2003)'
_computing_data_reduction        'SAINT 5 (Bruker-AXS, 2003)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart APEX CCD'
_diffrn_measurement_method       'omega and phi scans'
_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  0.0518
_diffrn_reflns_av_sigmaI/netI    0.0317
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            81610
_diffrn_reflns_theta_full        29.57
_diffrn_reflns_theta_max         29.57
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    0.129
_exptl_absorpt_correction_T_max  0.9809
_exptl_absorpt_correction_T_min  0.9746
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.131
_exptl_crystal_description       plate
_exptl_crystal_F_000             1376
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.504
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     418
_refine_ls_number_reflns         10489
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0592
_refine_ls_R_factor_gt           0.0444
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0607P)^2^+1.0921P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1088
_refine_ls_wR_factor_ref         0.1184
_reflns_number_gt                8429
_reflns_number_total             10489
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0648099si20060706_015932.cif
_cod_data_source_block           05258
_cod_database_code               4110922