Enhancement of cyclization quantum yields of perfluorodiarylethenes via weak intramolecular interactions
Shouzhi Pu; Chunhong Zheng; Qi Sun; Gang Liu; Congbin Fan; Chem.Commun. 49 (2013) 8036–; doi:10.1039/c3cc44348e

data_7109701
_publ_section_title
;
 Enhancement of cyclization quantum yields of perfluorodiarylethenes via
 weak intramolecular interactions
;
_journal_name_full               Chem.Commun.
_journal_page_first              8036
_journal_paper_doi               10.1039/c3cc44348e
_journal_volume                  49
_journal_year                    2013
_chemical_formula_sum            'C22 H17 F6 N S2'
_chemical_formula_weight         473.49
_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                66.6080(10)
_cell_angle_beta                 68.4160(10)
_cell_angle_gamma                78.7220(10)
_cell_formula_units_Z            2
_cell_length_a                   8.8943(10)
_cell_length_b                   11.9170(14)
_cell_length_c                   12.0266(14)
_cell_measurement_reflns_used    4641
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      0.00
_cell_measurement_theta_min      0.00
_cell_volume                     1086.1(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0166
_diffrn_reflns_av_sigmaI/netI    0.0201
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8409
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.47
_exptl_absorpt_coefficient_mu    0.305
_exptl_absorpt_correction_T_max  0.9008
_exptl_absorpt_correction_T_min  0.8826
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.448
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.651
_refine_diff_density_min         -0.708
_refine_diff_density_rms         0.073
_refine_ls_extinction_coef       0.035(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         4017
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0795
_refine_ls_R_factor_gt           0.0686
_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^)+(0.1021P)^2^+0.9558P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1895
_refine_ls_wR_factor_ref         0.2049
_reflns_number_gt                3305
_reflns_number_total             4017
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc44348e.txt
_cod_data_source_block           a
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7109701