High-pressure crystallographic and spectroscopic studies on two molecular dithienylethene switches
Woodall, Christopher H.; Brayshaw, Simon K.; Schiffers, Stefanie; Allan, David R.; Parsons, Simon; Valiente, Rafael; Raithby, Paul R.; CrystEngComm 16 (2014) 2119–; doi:10.1039/c3ce41933a

data_7213995
_publ_section_title
;
 High-pressure crystallographic and spectroscopic studies on two molecular
 dithienylethene switches
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              2119
_journal_paper_doi               10.1039/c3ce41933a
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         '2(C17 H14 F6 S2)'
_chemical_formula_sum            'C17 H14 F6 S2'
_chemical_formula_weight         396.42
_chemical_name_common            DimethylthiopheneDTE
_chemical_name_systematic
;
 1,2-Bis(2,5-dimethylthiophen-3-yl) perfluorocyclopentene
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 99.830(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.4211(7)
_cell_length_b                   16.1206(12)
_cell_length_c                   15.1690(68)
_cell_measurement_reflns_used    688
_cell_measurement_temperature    293
_cell_measurement_theta_max      28.6401
_cell_measurement_theta_min      2.1237
_cell_volume                     2510.9(12)
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.258
_diffrn_measured_fraction_theta_max 0.258
_diffrn_measurement_device
;
CrystalLogic Kappa (3 circle)
;
_diffrn_measurement_device_type
;
Rigaku Saturn724+ (2x2 bin mode)
;
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  Synchrotron
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6889
_diffrn_reflns_av_R_equivalents  0.1016
_diffrn_reflns_av_sigmaI/netI    0.0858
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            5197
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         3.51
_exptl_absorpt_coefficient_mu    0.394
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.9 (release 08-12-2009 CrysAlis171 .NET)
(compiled Dec  8 2009,17:31:18)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.099
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1616
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.404
_refine_diff_density_min         -0.341
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         1349
_refine_ls_number_restraints     85
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0795
_refine_ls_R_factor_gt           0.0613
_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^)+(0.0538P)^2^+1.4525P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1546
_refine_ls_wR_factor_ref         0.1699
_reflns_number_gt                1024
_reflns_number_total             1349
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce41933a.txt
_cod_data_source_block           8.55GPaDimethylthiopheneDTE
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_cell_volume        2509.3(11)
_cod_database_code               7213995