Computational and Crystallographic Studies of Pseudo-Polyhalides
Walsh, Rosa D.; Smith, Jessica M.; Hanks, Timothy W.; Pennington, William T.; Crystal Growth & Design 12 (2012) 2759–; doi:10.1021/cg201231t

data_4506128
_publ_section_title
;
 Computational and Crystallographic Studies of Pseudo-Polyhalides
;
_journal_issue                   6
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2759
_journal_paper_doi               10.1021/cg201231t
_journal_volume                  12
_journal_year                    2012
_chemical_formula_sum            'C20 H36 I5 N2 O6 Rb'
_chemical_formula_weight         1120.48
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 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                 92.017(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.573(3)
_cell_length_b                   12.2683(14)
_cell_length_c                   26.225(3)
_cell_measurement_temperature    293(2)
_cell_volume                     6615.0(14)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_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  0.0610
_diffrn_reflns_av_sigmaI/netI    0.1330
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            6890
_diffrn_reflns_theta_full        26.79
_diffrn_reflns_theta_max         26.79
_diffrn_reflns_theta_min         3.00
_exptl_absorpt_coefficient_mu    6.196
_exptl_crystal_density_diffrn    2.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             4160
_refine_diff_density_max         1.310
_refine_diff_density_min         -2.658
_refine_diff_density_rms         0.279
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.123
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         6889
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.123
_refine_ls_R_factor_all          0.1174
_refine_ls_R_factor_gt           0.0686
_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^)+(0.0471P)^2^+3.7000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1610
_refine_ls_wR_factor_ref         0.1806
_reflns_number_gt                4281
_reflns_number_total             6889
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg201231t_si_001.cif
_cod_data_source_block           cd0406
_cod_database_code               4506128