Probing halogen bonds with solid-state NMR spectroscopy: observation and interpretation of J(77Se,31P) coupling in halogen-bonded PSe⋯I motifs
Viger-Gravel, Jasmine; Meyer, Julia E.; Korobkov, Ilia; Bryce, David L.; CrystEngComm 16 (2014) 7285–; doi:10.1039/C4CE00345D

data_7217436
_publ_section_title
;
 Probing halogen bonds with solid-state NMR spectroscopy: observation and
 interpretation of J(77Se,31P) coupling in halogen-bonded
 P&#xE001;Se&#x22EF;I motifs
;
_journal_issue                   31
_journal_name_full               CrystEngComm
_journal_page_first              7285
_journal_paper_doi               10.1039/C4CE00345D
_journal_volume                  16
_journal_year                    2014
_chemical_formula_sum            'C24 H15 F4 I2 P Se'
_chemical_formula_weight         743.09
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 101.2140(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.7022(3)
_cell_length_b                   12.7689(3)
_cell_length_c                   13.9386(3)
_cell_measurement_reflns_used    9930
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.82
_cell_volume                     2392.16(9)
_computing_cell_refinement       'APEX II, Bruker (2009)'
_computing_data_collection       'APEX II, Bruker (2009)'
_computing_data_reduction        'XPREP, Bruker (2009)'
_computing_molecular_graphics    'SHELXTL, Bruker (2004)'
_computing_publication_material  'SHELXTL, Bruker (2004)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_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  0.0187
_diffrn_reflns_av_sigmaI/netI    0.0124
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            31024
_diffrn_reflns_theta_full        28.33
_diffrn_reflns_theta_max         28.33
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    4.259
_exptl_absorpt_correction_T_max  0.5313
_exptl_absorpt_correction_T_min  0.3818
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.063
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1400
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.407
_refine_diff_density_min         -0.757
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         5895
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0179
_refine_ls_R_factor_gt           0.0164
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0248P)^2^+0.8211P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0416
_refine_ls_wR_factor_ref         0.0424
_reflns_number_gt                5571
_reflns_number_total             5895
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7215249
_cod_data_source_file            c4ce00345d2.cif
_cod_data_source_block           db114
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'n/a' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7217436