Congested C2-symmetric aryliodanes based on an anti-dimethanoanthracene backbone
Stephen J. Murray; Helge Muller-Bunz; Hasim Ibrahim; Chem.Commun. 48 (2012) 6268–; doi:10.1039/c2cc32280c

data_7107861
_publ_section_title
;
 Congested C2-symmetric aryliodanes based on an anti-dimethanoanthracene
 backbone
;
_journal_name_full               Chem.Commun.
_journal_page_first              6268
_journal_paper_doi               10.1039/c2cc32280c
_journal_volume                  48
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H19 I O3'
_chemical_formula_sum            'C16 H19 I O3'
_chemical_formula_weight         386.21
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   mixed
_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                   8.6625(2)
_cell_length_b                   13.8534(3)
_cell_length_c                   11.4816(2)
_cell_measurement_reflns_used    8675
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      76.6641
_cell_measurement_theta_min      7.7110
_cell_volume                     1377.85(5)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.3196
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0451
_diffrn_reflns_av_sigmaI/netI    0.0244
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            12015
_diffrn_reflns_theta_full        75.00
_diffrn_reflns_theta_max         76.87
_diffrn_reflns_theta_min         7.72
_exptl_absorpt_coefficient_mu    18.308
_exptl_absorpt_correction_T_max  0.803
_exptl_absorpt_correction_T_min  0.110
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.862
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.1873
_exptl_crystal_size_mid          0.1514
_exptl_crystal_size_min          0.0115
_refine_diff_density_max         1.044
_refine_diff_density_min         -1.022
_refine_diff_density_rms         0.102
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.009(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     187
_refine_ls_number_reflns         2570
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0264
_refine_ls_R_factor_gt           0.0251
_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^)+(0.0476P)^2^+0.4093P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0663
_refine_ls_wR_factor_ref         0.0673
_reflns_number_gt                2449
_reflns_number_total             2570
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c2cc32280c.txt
_cod_data_source_block           has22
_cod_database_code               7107861