Fluorination observed Tc increase of 110 K is challenging hydrogen-deuterium isotope effect
Liu, Yu-Ling; Lu, Si-Qi; Tang, Yuan-Yuan; Chen, Xiao-Gang; Gao, Ji-Xing; Li, Hao-Jie; Xiong, Ren-Gen; Chemical Communications  (2019) –; doi:10.1039/C9CC04658E

data_7123922
_publ_section_title
;
 Fluorination observed Tc increase of 110 K is challenging
 hydrogen-deuterium isotope effect
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC04658E
_journal_year                    2019
_chemical_formula_moiety         'C7 H9 N2, 3(I Pb0.33)'
_chemical_formula_sum            'C7 H9 I3 N2 Pb'
_chemical_formula_weight         709.06
_space_group_crystal_system      hexagonal
_space_group_IT_number           194
_space_group_name_Hall           '-P 6c 2c'
_space_group_name_H-M_alt        'P 63/m m c'
_symmetry_space_group_name_Hall  '-P 6c 2c'
_symmetry_space_group_name_H-M   'P 63/m m c'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-06-17 deposited with the CCDC.    2019-07-29 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   10.6336(7)
_cell_length_b                   10.6336(7)
_cell_length_c                   8.1342(5)
_cell_measurement_reflns_used    735
_cell_measurement_temperature    483(2)
_cell_measurement_theta_max      26.2790
_cell_measurement_theta_min      3.3450
_cell_volume                     796.54(9)
_computing_cell_refinement       'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      483(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.877
_diffrn_measurement_device_type  'XtaLAB Synergy R, DW system, HyPix'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0125
_diffrn_reflns_av_unetI/netI     0.0099
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.877
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2029
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.877
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.930
_diffrn_reflns_theta_min         3.342
_diffrn_source                   'Rotating-anode X-ray tube'
_exptl_absorpt_coefficient_mu    16.375
_exptl_absorpt_correction_T_max  0.038
_exptl_absorpt_correction_T_min  0.028
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro 1.171.40.14e (Rigaku OD, 2018)'
_exptl_crystal_colour            Pale-yellow
_exptl_crystal_density_diffrn    2.956
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             612
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.441
_refine_diff_density_min         -0.406
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     25
_refine_ls_number_reflns         436
_refine_ls_number_restraints     32
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0690
_refine_ls_R_factor_gt           0.0406
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0679P)^2^+1.2851P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1292
_refine_ls_wR_factor_ref         0.1464
_reflns_Friedel_coverage         0.000
_reflns_number_gt                222
_reflns_number_total             436
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc04658e2.cif
_cod_data_source_block           n-FMDABCO_483K
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        796.54(12)
_cod_database_code               7123922
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              10343