Methyl substituent effect on structure, luminescence and semiconducting properties of furan/phenylene co-oligomer single crystals
Kazantsev, Maxim S.; Beloborodova, Alina A.; Frantseva, Ekaterina S.; Rybalova, Tatyana V.; Konstantinov, Vladislav G.; Shundrina, Inna K.; Paraschuk, Dmitry Yu.; Mostovich, Evgeny A.; CrystEngComm 19 (2017) 1809–; doi:10.1039/C6CE02565J

data_7227745
_publ_section_title
;
 Methyl substituent effect on structure, luminescence and semiconducting
 properties of furan/phenylene co-oligomer single crystals
;
_journal_issue                   13
_journal_name_full               CrystEngComm
_journal_page_first              1809
_journal_paper_doi               10.1039/C6CE02565J
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C26 H18 O2'
_chemical_formula_sum            'C26 H18 O2'
_chemical_formula_weight         362.40
_chemical_name_systematic
; 
 1,4-bis(5-phenylfuran-2-yl)benzene 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_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
_audit_update_record
;
2016-12-02 deposited with the CCDC.
2017-02-28 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 97.773(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   20.407(4)
_cell_length_b                   7.2998(14)
_cell_length_c                   6.2000(11)
_cell_measurement_reflns_used    2372
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      24.37
_cell_measurement_theta_min      2.97
_cell_volume                     915.1(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.960
_diffrn_measured_fraction_theta_max 0.960
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0535
_diffrn_reflns_av_sigmaI/netI    0.0476
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            7983
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.01
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9280
_exptl_absorpt_correction_T_min  0.7869
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2008/1
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.315
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             380
_exptl_crystal_preparation       ', Luminescent'
_exptl_crystal_recrystallization_method 'Vapour deposition'
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.56
_exptl_crystal_size_min          0.015
_refine_diff_density_max         0.218
_refine_diff_density_min         -0.307
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.189
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     127
_refine_ls_number_reflns         1550
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.189
_refine_ls_R_factor_all          0.0863
_refine_ls_R_factor_gt           0.0567
_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^)+(0.0885P)^2^+0.1525P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1454
_refine_ls_wR_factor_ref         0.1719
_reflns_number_gt                1115
_reflns_number_total             1550
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ce02565j2.cif
_cod_data_source_block           BPFB_kesvap
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7227744--7227746.cif.
;
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               7227745