Further evidence for spontaneous solid-state polymerisation reactions in 2,5-dibromothiophene derivativesElectronic supplementary information (ESI) available: X-ray data for DBMDTT, DBEDTT and DBPDTT. See http://www.rsc.org/suppdata/jm/b3/b307575n/
Spencer, Howard J.; Berridge, Rory; Crouch, David J.; Wright, Shaun P.; Giles, Mark; McCulloch, Iain; Coles, Simon J.; Hursthouse, Michael B.; Skabara, Peter J.; Journal of Materials Chemistry 13 (2003) 2075–; doi:10.1039/b307575n

data_7204726
_publ_section_title
;
 Further evidence for spontaneous solid-state polymerisation reactions
 in 2,5-dibromothiophene derivativesElectronic supplementary
 information (ESI) available: X-ray data for DBMDTT, DBEDTT and DBPDTT.
 See http://www.rsc.org/suppdata/jm/b3/b307575n/
;
_journal_issue                   9
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              2075
_journal_paper_doi               10.1039/b307575n
_journal_volume                  13
_journal_year                    2003
_chemical_formula_sum            'C5 H2 Br2 S3'
_chemical_formula_weight         318.07
_chemical_name_systematic
;
?
;
_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                 105.3610(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.4164(2)
_cell_length_b                   11.0544(3)
_cell_length_c                   10.6791(4)
_cell_measurement_reflns_used    5679
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     844.24(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1888
_diffrn_reflns_av_sigmaI/netI    0.1055
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8570
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         3.39
_exptl_absorpt_coefficient_mu    10.260
_exptl_absorpt_correction_T_max  0.6280
_exptl_absorpt_correction_T_min  0.0837
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV (Blessing, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.502
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.583
_refine_diff_density_min         -1.626
_refine_diff_density_rms         0.286
_refine_ls_extinction_coef       0.026(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     92
_refine_ls_number_reflns         1927
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0615
_refine_ls_R_factor_gt           0.0572
_refine_ls_shift/su_max          0.253
_refine_ls_shift/su_mean         0.018
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0891P)^2^+1.3486P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1455
_refine_ls_wR_factor_ref         0.1516
_reflns_number_gt                1757
_reflns_number_total             1927
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b307575n.txt
_cod_data_source_block           03src0148
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7204726