Synthesis and Properties of Benzofuran-Fused Silole and Germole Derivatives: Reversible Dimerization and Crystal Structures of Monomers and Dimers
Zhang, Fei-Bao; Adachi, Yohei; Ooyama, Yousuke; Ohshita, Joji; Organometallics 35 (2016) 2327–; doi:10.1021/acs.organomet.6b00222

data_4086590
_publ_section_title
;
 Synthesis and Properties of Benzofuran-Fused Silole and Germole
 Derivatives: Reversible Dimerization and Crystal Structures of Monomers
 and Dimers
;
_journal_issue                   14
_journal_name_full               Organometallics
_journal_page_first              2327
_journal_paper_doi               10.1021/acs.organomet.6b00222
_journal_volume                  35
_journal_year                    2016
_chemical_formula_sum            'C28 H18 Ge O2'
_chemical_formula_weight         459.01
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 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                 110.545(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.1582(16)
_cell_length_b                   17.7723(14)
_cell_length_c                   7.4500(9)
_cell_measurement_reflns_used    4193
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      24.50
_cell_measurement_theta_min      2.64
_cell_volume                     2127.3(4)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0248
_diffrn_reflns_av_sigmaI/netI    0.0213
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            8422
_diffrn_reflns_theta_full        25.19
_diffrn_reflns_theta_max         25.19
_diffrn_reflns_theta_min         3.42
_exptl_absorpt_coefficient_mu    1.463
_exptl_absorpt_correction_T_max  0.8675
_exptl_absorpt_correction_T_min  0.6849
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.433
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.438
_refine_diff_density_min         -0.576
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.199
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     141
_refine_ls_number_reflns         1910
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.199
_refine_ls_R_factor_all          0.0385
_refine_ls_R_factor_gt           0.0255
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0281P)^2^+2.0846P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0589
_refine_ls_wR_factor_ref         0.0772
_reflns_number_gt                1599
_reflns_number_total             1910
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om6b00222_si_002.cif
_cod_data_source_block           zfb20151102
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 4086587--4086590.cif.
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4086590