N⋯I halogen bonding supported stabilization of a discrete pseudo-linear [I12]2−polyiodide
Peuronen, Anssi; Rinta, Heikki; Lahtinen, Manu; CrystEngComm 17 (2015) 1736–; doi:10.1039/C4CE01866D

data_7218350
_publ_section_title
;
 N&#x22EF;I halogen bonding supported stabilization of a discrete
 pseudo-linear [I12]2&#x2212;polyiodide
;
_journal_issue                   8
_journal_name_full               CrystEngComm
_journal_page_first              1736
_journal_paper_doi               10.1039/C4CE01866D
_journal_volume                  17
_journal_year                    2015
_chemical_formula_moiety         'C18 H36 N4, 4(I)'
_chemical_formula_sum            'C18 H36 I4 N4'
_chemical_formula_weight         816.11
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     heavy
_audit_creation_date             2014-08-21
_audit_creation_method
;
Olex2 1.2
(compiled 2014.07.22 svn.r2960 for OlexSys, GUI svn.r4862)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   28.9478(14)
_cell_length_b                   14.3498(9)
_cell_length_c                   6.3034(4)
_cell_measurement_temperature    123
_cell_volume                     2618.4(3)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      123
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker-Nonius Kappa CCD with APEXII detector'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0525
_diffrn_reflns_av_unetI/netI     0.0357
_diffrn_reflns_Laue_measured_fraction_full 0.983
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            15764
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.999
_diffrn_reflns_theta_min         3.153
_exptl_absorpt_coefficient_mu    4.771
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.4596
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2012/1 (Bruker,2012) was used for absorption correction.
wR2(int) was 0.1336 before and 0.0809 after correction.
The Ratio of minimum to maximum transmission is 0.6164.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    2.070
_exptl_crystal_description       plate
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         3.538
_refine_diff_density_min         -1.137
_refine_diff_density_rms         0.221
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.199
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     124
_refine_ls_number_reflns         2638
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.198
_refine_ls_R_factor_all          0.0625
_refine_ls_R_factor_gt           0.0563
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0464P)^2^+44.2980P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1465
_refine_ls_wR_factor_ref         0.1497
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2399
_reflns_number_total             2638
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c4ce01866d2.cif
_cod_data_source_block           1-I4_2-
_cod_depositor_comments
'Adding full bibliography for 7218347--7218353.cif.'
_cod_database_code               7218350
_shelxl_version_number           2013-4
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
2. Uiso/Uaniso restraints and constraints
Uanis(C9) \\sim Ueq: with sigma of 0.01 and sigma for terminal atoms of 0.02
3.a Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B), C2(H2A,H2B), C3(H3A,H3B), C4(H4A,H4B), C5(H5A,H5B), C6(H6A,H6B),
 C7(H7A,H7B), C8(H8A,H8B), C9(H9A,H9B)
;
_olex2_submission_special_instructions 'No special instructions were received'