Synthetically controlling the optoelectronic properties of dithieno[2,3-d:2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene-alt-diketopyrrolopyrrole-conjugated polymers for efficient solar cells
Sun, Shuo; Zhang, Peng; Li, Jianfeng; Li, Yuanke; Wang, Jianlu; Zhang, Shujiang; Xia, Yangjun; Meng, Xiangjian; Fan, Duowang; Chu, Junhao; J. Mater. Chem. A 2 (2014) 15316–; doi:10.1039/C4TA01632G

data_7235754
_publ_section_title
;
 Synthetically controlling the optoelectronic properties of
 dithieno[2,3-d:2&#x2032;,3&#x2032;-d&#x2032;]benzo[1,2-b:4,5-b&#x2032;]dithiophene-alt-diketopyrrolopyrrole-conjugated
 polymers for efficient solar cells
;
_journal_issue                   37
_journal_name_full               'J. Mater. Chem. A'
_journal_page_first              15316
_journal_paper_doi               10.1039/C4TA01632G
_journal_volume                  2
_journal_year                    2014
_chemical_formula_sum            'C24 H22 S4 Si2'
_chemical_formula_weight         494.84
_chemical_melting_point          560.0(10)
_chemical_name_systematic
;
5,10-bis(trimethylsilylethynyl)dithieno[2,3-d:2',3'-d']benzo[1,2-b:4,5-b']di-
thiophene
;
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_H-M   'P 1 21/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                 103.021(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.330(4)
_cell_length_b                   21.410(14)
_cell_length_c                   9.618(7)
_cell_measurement_reflns_used    1972
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.39
_cell_measurement_theta_min      2.37
_cell_volume                     1270.0(15)
_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 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0617
_diffrn_reflns_av_sigmaI/netI    0.0654
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            8668
_diffrn_reflns_theta_full        25.30
_diffrn_reflns_theta_max         25.30
_diffrn_reflns_theta_min         2.37
_exptl_absorpt_coefficient_mu    0.478
_exptl_absorpt_correction_T_max  0.935
_exptl_absorpt_correction_T_min  0.866
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            YELLOW
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             516
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.289
_refine_diff_density_min         -0.350
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.197
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     139
_refine_ls_number_reflns         2313
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.197
_refine_ls_R_factor_all          0.1166
_refine_ls_R_factor_gt           0.0657
_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^)+(0.0000P)^2^+2.7867P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1178
_refine_ls_wR_factor_ref         0.1412
_reflns_number_gt                1462
_reflns_number_total             2313
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ta01632g2.cif
_cod_data_source_block           DTBDT-SiMe3
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '559-561' was changed to
'560.0(10)' -- the average value was taken and precision was
estimated.

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/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_refine_ls_hydrogen_treatment' value 'CONSTR' was changed
to 'constr' 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.

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' 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 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7235754