Diastereoselective cyclization in chiral diarylethene crystals: polymorphism and selectivity.
Yamamoto, Satoshi; Matsuda, Kenji; Irie, Masahiro; Organic letters 5 (2003) 1769–1772; doi:10.1021/ol034440h

data_1507307
_publ_contact_author
;Prof. Masahiro. Irie
Department of Chemistry and Biochemistry
Graduate School of Engineering, Kyushu University
Hakozaki 6-10-1, Higashi-ku, Fukuoka, Japan
;
_publ_section_title
;
 Diastereoselective cyclization in chiral diarylethene crystals:
 polymorphism and selectivity.
;
_journal_issue                   10
_journal_name_full               'Organic letters'
_journal_page_first              1769
_journal_page_last               1772
_journal_paper_doi               10.1021/ol034440h
_journal_volume                  5
_journal_year                    2003
_chemical_formula_sum            'C33 H28 F6 S2'
_chemical_formula_weight         602.67
_chemical_name_systematic
; 
(S,R,R)-1b
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 91.697(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.555(6)
_cell_length_b                   25.402(13)
_cell_length_c                   10.647(6)
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.63
_cell_measurement_theta_min      1.60
_cell_volume                     2853(3)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.908
_diffrn_measured_fraction_theta_max 0.908
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1028
_diffrn_reflns_av_sigmaI/netI    0.2045
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            16375
_diffrn_reflns_theta_full        27.63
_diffrn_reflns_theta_max         27.63
_diffrn_reflns_theta_min         1.60
_diffrn_standards_decay_%        -1.36
_exptl_absorpt_coefficient_mu    0.248
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.403
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.571
_refine_diff_density_min         -0.460
_refine_diff_density_rms         0.098
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.09(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     742
_refine_ls_number_reflns         11163
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.2019
_refine_ls_R_factor_gt           0.0931
_refine_ls_shift/su_max          1.553
_refine_ls_shift/su_mean         0.016
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1600P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2286
_refine_ls_wR_factor_ref         0.2971
_reflns_number_gt                5422
_reflns_number_total             11163
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol034440hsi20030312_101111.cif
_cod_data_source_block           (S,R,R)-1b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_sg_symbol_H-M      P2(1)
_cod_database_code               1507307