Crystal Engineering through Halogen Bonding. 2. Complexes of Diacetylene-Linked Heterocycles with Organic Iodides
Crihfield, April; Hartwell, Joshua; Phelps, Dustin; Walsh, Rosa Bailey; Harris, Jeffery L.; Payne, John F.; Pennington, William T.; Hanks, Timothy W.; Crystal Growth & Design 3 (2003) 313–; doi:10.1021/cg0340042

data_4505686
_publ_section_title
;
 Crystal Engineering through Halogen Bonding. 2. Complexes of
 Diacetylene-Linked Heterocycles with Organic Iodides
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              313
_journal_paper_doi               10.1021/cg0340042
_journal_volume                  3
_journal_year                    2003
_chemical_formula_sum            'C28 H12 F4 I2 N2'
_chemical_formula_weight         706.20
_space_group_IT_number           2
_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                80.96(3)
_cell_angle_beta                 85.29(3)
_cell_angle_gamma                84.00(3)
_cell_formula_units_Z            1
_cell_length_a                   4.023(2)
_cell_length_b                   7.540(4)
_cell_length_c                   20.239(11)
_cell_measurement_temperature    293(2)
_cell_volume                     601.6(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_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  0.1570
_diffrn_reflns_av_sigmaI/netI    0.1267
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            5574
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.78
_exptl_absorpt_coefficient_mu    2.665
_exptl_crystal_density_diffrn    1.949
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             336
_refine_diff_density_max         2.202
_refine_diff_density_min         -2.334
_refine_diff_density_rms         0.308
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.190
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2334
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.190
_refine_ls_R_factor_all          0.1633
_refine_ls_R_factor_gt           0.1471
_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^)+(0.0001P)^2^+19.1000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2818
_refine_ls_wR_factor_ref         0.2916
_reflns_number_gt                1902
_reflns_number_total             2334
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0340042si20030204_083047.cif
_cod_data_source_block           2.F4DIB
_cod_database_code               4505686