Direct investigation of chalcogen bonds by multinuclear solid-state magnetic resonance and vibrational spectroscopy.
Kumar, Vijith; Xu, Yijue; Leroy, César; Bryce, David L.; Physical chemistry chemical physics : PCCP 22 (2020) 3817–3824; doi:10.1039/c9cp06267j

data_7239799
_publ_section_title
;
 Direct investigation of chalcogen bonds by multinuclear solid-state
 magnetic resonance and vibrational spectroscopy.
;
_journal_issue                   7
_journal_name_full               'Physical chemistry chemical physics : PCCP'
_journal_page_first              3817
_journal_page_last               3824
_journal_paper_doi               10.1039/c9cp06267j
_journal_volume                  22
_journal_year                    2020
_chemical_formula_moiety         'C8 H7 N Te'
_chemical_formula_sum            'C8 H7 N Te'
_chemical_formula_weight         244.75
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2019-09-27
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-09-27 deposited with the CCDC.	2020-01-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.82(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.031(4)
_cell_length_b                   16.042(11)
_cell_length_c                   8.787(7)
_cell_measurement_reflns_used    9909
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.89
_cell_measurement_theta_min      2.54
_cell_volume                     845.8(11)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293.15
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART APEX2 area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0407
_diffrn_reflns_av_unetI/netI     0.0144
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            31142
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.506
_diffrn_reflns_theta_min         2.539
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_exptl_absorpt_coefficient_mu    3.441
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5315
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0816 before and 0.0530 after correction. The Ratio of minimum to maximum transmission is 0.7128. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.922
_exptl_crystal_description       plate
_exptl_crystal_F_000             456
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.337
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.158
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     146
_refine_ls_number_reflns         1938
_refine_ls_number_restraints     84
_refine_ls_restrained_S_all      1.145
_refine_ls_R_factor_all          0.0241
_refine_ls_R_factor_gt           0.0190
_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^)+(0.0180P)^2^+0.2454P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0410
_refine_ls_wR_factor_ref         0.0424
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1709
_reflns_number_total             1938
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cp06267j2.cif
_cod_data_source_block           vks16_a
_cod_depositor_comments
'Adding full bibliography for 7239797--7239799.cif.'
_cod_original_cell_volume        845.7(11)
_cod_database_code               7239799
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.770
_shelx_estimated_absorpt_t_min   0.576
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H,H,H) groups
2. Rigid body (RIGU) restrains
 C1, C2, C3, C4, C5, C6, C1A, C2A, C3A, C4A, C5A, C6A
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
 C1, C1A
 with sigma for 1-2 distances of 0.0001 and sigma for 1-3 distances of 0.0001
3. Same fragment restrains
{C1, C2, C3, C4, C5, C6} sigma for 1-2: 0.02, 1-3: 0.04
as
{C1A, C2A, C3A, C4A, C5A, C6A}
4. Others
 Sof(H7BC)=Sof(H7BD)=Sof(C1A)=Sof(C2A)=Sof(H2A)=Sof(C3A)=Sof(H3A)=Sof(C4A)=
 Sof(H4A)=Sof(C5A)=Sof(H5A)=Sof(C6A)=Sof(H6A)=1-FVAR(1)
 Sof(H7AA)=Sof(H7AB)=Sof(C1)=Sof(C2)=Sof(H2)=Sof(C3)=Sof(H3)=Sof(C4)=Sof(H4)=
 Sof(C5)=Sof(H5)=Sof(C6)=Sof(H6)=FVAR(1)
5.a Secondary CH2 refined with riding coordinates:
 C7(H7AA,H7AB), C7(H7BC,H7BD)
5.b Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C2A(H2A), C3A(H3A), C4A(H4A),
 C5A(H5A), C6A(H6A)
;
_shelx_res_checksum              59233
_shelx_hkl_checksum              35251
_olex2_submission_special_instructions 'No special instructions were received'