Molecular Stacking and Photoreactions of Fluorine-Substituted Benzyl Muconates in the Crystals
Mori, Yutaka; Matsumoto, Akikazu; Crystal Growth & Design 7 (2007) 377–; doi:10.1021/cg060643b

data_4503993
_publ_section_title
;
 Molecular Stacking and Photoreactions of Fluorine-Substituted Benzyl
 Muconates in the Crystals
;
_journal_issue                   2
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              377
_journal_paper_doi               10.1021/cg060643b
_journal_volume                  7
_journal_year                    2007
_chemical_formula_moiety         'C20 H14 F4 O4 '
_chemical_formula_sum            'C20 H14 F4 O4'
_chemical_formula_weight         394.31
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 98.82
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   19.165(3)
_cell_length_b                   8.2749(13)
_cell_length_c                   5.4329(8)
_cell_measurement_reflns_used    4526
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      27.3
_cell_measurement_theta_min      3.8
_cell_volume                     851.4(2)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        CrystalStructure
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      203(2)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0448
_diffrn_reflns_av_sigmaI/netI    0.0348
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            7868
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.27
_exptl_absorpt_coefficient_mu    0.135
_exptl_absorpt_correction_T_max  0.9866
_exptl_absorpt_correction_T_min  0.9417
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.538
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             404
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.220
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         1940
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0608
_refine_ls_R_factor_gt           0.0370
_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^)+(0.0493P)^2^+0.0119P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0854
_refine_ls_wR_factor_ref         0.0916
_reflns_number_gt                1394
_reflns_number_total             1940
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg060643bsi20060925_055533.cif
_cod_data_source_block           (E,E)-2
_cod_database_code               4503993