2,5-bis(Arylethynyl)thienyl systems: Preparation and photophysical properties. Part II
Coombs, Benjamin A.; Rutter, Simon R.; Goeta, Andrés E.; Sparkes, Hazel A.; Batsanov, Andrei S.; Beeby, Andrew; RSC Advances 2 (2012) 1870–; doi:10.1039/c1ra00728a

data_7238455
_publ_section_title
;
 2,5-bis(Arylethynyl)thienyl systems: Preparation and photophysical
 properties. Part II
;
_journal_issue                   5
_journal_name_full               'RSC Advances'
_journal_page_first              1870
_journal_paper_doi               10.1039/c1ra00728a
_journal_volume                  2
_journal_year                    2012
_chemical_formula_sum            'C22 H14 O2 S'
_chemical_formula_weight         342.39
_chemical_name_systematic
;
5,7-Bis-phenylethynyl-2,3-dihydro-thieno[3,4-b][1,4]dioxine
;
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.0350(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.2880(3)
_cell_length_b                   5.61860(10)
_cell_length_c                   22.5335(5)
_cell_measurement_reflns_used    8980
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      30.43
_cell_measurement_theta_min      2.31
_cell_volume                     1679.99(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.941
_diffrn_measured_fraction_theta_max 0.941
_diffrn_measurement_device_type  'Bruker SMART-1K CCD Diffractometer'
_diffrn_measurement_method       \w
_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  0.0366
_diffrn_reflns_av_sigmaI/netI    0.0364
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            18746
_diffrn_reflns_theta_full        30.47
_diffrn_reflns_theta_max         30.47
_diffrn_reflns_theta_min         1.53
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.204
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.354
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.315
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         4792
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0612
_refine_ls_R_factor_gt           0.0413
_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^)+(0.0413P)^2^+0.5734P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0895
_refine_ls_wR_factor_ref         0.0969
_reflns_number_gt                3701
_reflns_number_total             4792
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ra00728a.txt
_cod_data_source_block           04srv045
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7238455