Reversible Diastereoselective Photocyclization of a Diarylethene in a Single-Crystalline Phase
Tetsuhiro Kodani; Kenji Matsuda; Taro Yamada; Seiya Kobatake; Masahiro Irie; Journal of the American Chemical Society 122 (2000) 9631–9637; doi:10.1021/ja001350o

data_4116178
_publ_contact_author
;Prof. Masahiro Irie
Department of Chemistry and Biochemistry,
Graduate School of Engineering,
Kyushu University, 6-10-1 Hakozaki,
Higashi-ku, Fukuoka 812-8581, Japan
;
_publ_contact_author_email       ' irie@cstf.kyushu-u.ac.jp '
_publ_contact_author_fax         ' 81(92)6423568 '
_publ_contact_author_phone       ' 81(92)6423556 '
_publ_section_title
;
 Reversible Diastereoselective Photocyclization of a Diarylethene in a
 Single-Crystalline Phase
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9631
_journal_page_last               9637
_journal_paper_doi               10.1021/ja001350o
_journal_volume                  122
_journal_year                    2000
_chemical_formula_sum            'C32 H26 F6 S2'
_chemical_formula_weight         588.65
_chemical_name_systematic
;
 (R)-1-(2-methyl-5-phenyl-3-thienyl)-2-[2-(3-methyl-1-penten-1-yl)
 -5-phenyl-3-thienyl]-3,3,4,4,5,5-hexafluorocyclopentene
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.3680(10)
_cell_length_b                   11.8571(12)
_cell_length_c                   24.971(3)
_cell_measurement_temperature    123(2)
_cell_volume                     2773.7(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_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  0.0273
_diffrn_reflns_av_sigmaI/netI    0.0355
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            16034
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.63
_exptl_absorpt_coefficient_mu    0.253
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.410
_exptl_crystal_description       cubic
_exptl_crystal_F_000             1216
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.488
_refine_diff_density_min         -0.523
_refine_diff_density_rms         0.060
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         5913
_refine_ls_number_restraints     20
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0574
_refine_ls_R_factor_gt           0.0462
_refine_ls_shift/su_max          0.103
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0546P)^2^+2.0121P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1090
_refine_ls_wR_factor_ref         0.1149
_reflns_number_gt                5083
_reflns_number_total             5913
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja001350o_2.cif
_cod_data_source_block           (R)-1a
_cod_database_code               4116178