Synthesis and investigation of novel thiophene derivatives containing heteroatom linkers for solid state polymerization
Tusy, Chuong; Huang, Lili; Jin, Jingpeng; Xia, Jiangbin; RSC Advances 4 (2014) 8011–; doi:10.1039/c3ra45014g

data_7239338
_publ_section_title
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 Synthesis and investigation of novel thiophene derivatives containing
 heteroatom linkers for solid state polymerization
;
_journal_issue                   16
_journal_name_full               'RSC Advances'
_journal_page_first              8011
_journal_paper_doi               10.1039/c3ra45014g
_journal_volume                  4
_journal_year                    2014
_chemical_formula_sum            'C14 H14 I2 O4 S2 Si'
_chemical_formula_weight         592.26
_space_group_IT_number           45
_space_group_name_Hall           'I 2 -2c'
_space_group_name_H-M_alt        'I b a 2'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_H-M   'I b a 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.903(8)
_cell_length_b                   28.697(13)
_cell_length_c                   8.005(4)
_cell_measurement_reflns_used    3850
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.00
_cell_measurement_theta_min      2.45
_cell_volume                     3883(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0355
_diffrn_reflns_av_sigmaI/netI    0.0377
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            11749
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.40
_exptl_absorpt_coefficient_mu    3.530
_exptl_absorpt_correction_T_max  0.5387
_exptl_absorpt_correction_T_min  0.4275
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    2.026
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             2256
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         4.556
_refine_diff_density_min         -0.914
_refine_diff_density_rms         0.196
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         3775
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0854
_refine_ls_R_factor_gt           0.0741
_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^)+(0.1095P)^2^+54.3190P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1931
_refine_ls_wR_factor_ref         0.2056
_reflns_number_gt                3177
_reflns_number_total             3775
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra45014g.txt
_cod_data_source_block           xjb1
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/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 
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_cod_original_sg_symbol_H-M      Iba2
_cod_database_code               7239338