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_7235753
_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            'C38 H54 O2 S4'
_chemical_formula_weight         671.06
_chemical_melting_point          345.5(5)
_chemical_name_systematic
;
5,10-di(dodecyloxy)dithieno[2,3-d:2',3'-d']benzo[1,2-b:4,5-b']dithiophene
;
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_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                81.790(6)
_cell_angle_beta                 76.147(6)
_cell_angle_gamma                89.255(6)
_cell_formula_units_Z            1
_cell_length_a                   7.507(4)
_cell_length_b                   9.506(5)
_cell_length_c                   13.155(7)
_cell_measurement_reflns_used    2646
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.37
_cell_measurement_theta_min      2.80
_cell_volume                     901.9(8)
_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 0.956
_diffrn_measured_fraction_theta_max 0.956
_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  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0596
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            6254
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.51
_exptl_absorpt_coefficient_mu    0.295
_exptl_absorpt_correction_T_max  0.957
_exptl_absorpt_correction_T_min  0.919
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.235
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             362
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.475
_refine_diff_density_min         -0.347
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.292
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         3208
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.292
_refine_ls_R_factor_all          0.0934
_refine_ls_R_factor_gt           0.0631
_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^+1.2919P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1481
_refine_ls_wR_factor_ref         0.1592
_reflns_number_gt                2164
_reflns_number_total             3208
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ta01632g2.cif
_cod_data_source_block           DTBDT-C12
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '345-346' was changed to
'345.5(5)' -- the average value was taken and precision was
estimated.

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' 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_cell_volume        902.0(9)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7235753