Mechanistic insights into boron-catalysed direct amidation reactions.
Arkhipenko, Sergey; Sabatini, Marco T.; Batsanov, Andrei S.; Karaluka, Valerija; Sheppard, Tom D.; Rzepa, Henry S.; Whiting, Andrew; Chemical science 9 (2018) 1058–1072; doi:10.1039/c7sc03595k

data_1548575
_publ_section_title
;
 Mechanistic insights into boron-catalysed direct amidation reactions.
;
_journal_issue                   4
_journal_name_full               'Chemical science'
_journal_page_first              1058
_journal_page_last               1072
_journal_paper_doi               10.1039/c7sc03595k
_journal_volume                  9
_journal_year                    2018
_chemical_formula_moiety         'C18 H6 B3 F9 O3'
_chemical_formula_sum            'C18 H6 B3 F9 O3'
_chemical_formula_weight         473.66
_chemical_name_systematic        3,4,5-trifluorophenylboroxine
_space_group_crystal_system      orthorhombic
_space_group_IT_number           60
_space_group_name_Hall           '-P 2n 2ab'
_space_group_name_H-M_alt        'P b c n'
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_date             2016-11-08
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2016.09.09 svn.r3337 for OlexSys, GUI svn.r5227)
;
_audit_update_record
;
2017-07-23 deposited with the CCDC.
2018-01-02 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.083(4)
_cell_length_b                   13.093(3)
_cell_length_c                   7.990(2)
_cell_measurement_reflns_used    7348
_cell_measurement_temperature    120.0
_cell_measurement_theta_max      31.51
_cell_measurement_theta_min      2.38
_cell_volume                     1787.1(7)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_collection       'APEX2 v.2013.4_1 (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_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    'olex2.solve (Bourhis et al., 2015)'
_diffrn_ambient_temperature      120.0
_diffrn_detector                 'Bruker PHOTON 100 CMOS'
_diffrn_detector_area_resol_mean 10.4
_diffrn_detector_type            'CMOS sensor'
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '3-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'focusing mirrors'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0792
_diffrn_reflns_av_unetI/netI     0.0400
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            22891
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.996
_diffrn_reflns_theta_min         2.385
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\mS microsource'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.177
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8873
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.1096 before and 0.0711 after correction.
The Ratio of minimum to maximum transmission is 0.8873.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.761
_exptl_crystal_description       irregular
_exptl_crystal_F_000             936
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: chloroform, pentane'
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.312
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         2162
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0781
_refine_ls_R_factor_gt           0.0445
_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^)+(0.0600P)^2^+0.2500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1031
_refine_ls_wR_factor_ref         0.1170
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1466
_reflns_number_total             2162
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc03595k2.cif
_cod_data_source_block           7a_16srv413
_cod_depositor_comments
;
The following automatic conversions were performed:

'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray' 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 

 Adding full bibliography for 1548566--1548579.cif.
;
_cod_original_cell_volume        1787.0(8)
_cod_database_code               1548575
_shelx_estimated_absorpt_t_max   0.979
_shelx_estimated_absorpt_t_min   0.974
_computing.bruker_data_scaling   'SADABS V2012/1 (Bruker AXS Inc.)'
_olex2_refinement_description
;
;
_shelx_shelxl_version_number     2014/7