1-(2,5-Dimethyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-2-[5-(4-fluorophenyl)-2-methyl-3-thienyl]cyclopent-1-ene: a new photochromic diarylethene compound
Wen, Zhen-Dong; Yan, Liu-Shui; Pu, Shou-Zhi; Xu, Jing-Kun; Acta Crystallographica Section E 62 (2006) o4372–o4374; doi:10.1107/S1600536806035744

data_2210683
_publ_section_title
;1-(2,5-Dimethyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-2-[5-(4-fluorophenyl)-2-methyl-3-thienyl]cyclopent-1-ene:
 a new photochromic diarylethene compound
;
_journal_coeditor_code           JH2039
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4372
_journal_page_last               o4374
_journal_paper_doi               10.1107/S1600536806035744
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C22 H15 F7 S2'
_chemical_formula_moiety         'C22 H15 F7 S2'
_chemical_formula_sum            'C22 H15 F7 S2'
_chemical_formula_weight         476.46
_chemical_melting_point          365.7
_chemical_name_systematic
;
1-(2,5-Dimethyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-2-[5-(4-fluorophenyl)-
2-methyl-3-thienyl]cyclopent-1-ene
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_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                105.472(4)
_cell_angle_beta                 94.977(4)
_cell_angle_gamma                109.737(4)
_cell_formula_units_Z            2
_cell_length_a                   8.602(2)
_cell_length_b                   11.709(3)
_cell_length_c                   11.984(3)
_cell_measurement_reflns_used    2197
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      27.17
_cell_measurement_theta_min      2.56
_cell_volume                     1073.9(5)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        'SAINT (Bruker, 1997)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Brruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0174
_diffrn_reflns_av_sigmaI/netI    0.0380
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            5439
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    0.314
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.6524841
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.473
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.276
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     283
_refine_ls_number_reflns         3763
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0706
_refine_ls_R_factor_gt           0.0459
_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^)+(0.0679P)^2^+0.5304P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1300
_refine_ls_wR_factor_ref         0.1469
_reflns_number_gt                2668
_reflns_number_total             3763
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jh2039.cif
_cod_data_source_block           Ia
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1074.1(5)
_cod_database_code               2210683
_cod_database_fobs_code          2210683