Reactivity of highly Lewis acidic diborane(4) towards pyridine and isocyanide: formation of boraalkene-pyridine complex and <i>ortho</i>-functionalized pyridine derivatives.
Katsuma, Yuhei; Asakawa, Hiroki; Yamashita, Makoto; Chemical science 9 (2018) 1301–1310; doi:10.1039/c7sc04759b

data_1548445
_publ_section_title
;
 Reactivity of highly Lewis acidic diborane(4) towards pyridine and
 isocyanide: formation of boraalkene-pyridine complex and
 <i>ortho</i>-functionalized pyridine derivatives.
;
_journal_issue                   5
_journal_name_full               'Chemical science'
_journal_page_first              1301
_journal_page_last               1310
_journal_paper_doi               10.1039/c7sc04759b
_journal_volume                  9
_journal_year                    2018
_chemical_formula_moiety         'C39 H50 B2 N2 O3, C6 H14'
_chemical_formula_sum            'C45 H64 B2 N2 O3'
_chemical_formula_weight         702.60
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-11-03 deposited with the CCDC.
2017-12-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
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_cell_length_c                   16.091(3)
_cell_measurement_reflns_used    8618
_cell_measurement_temperature    93.1500
_cell_measurement_theta_max      31.3073
_cell_measurement_theta_min      2.4698
_cell_volume                     4096.2(12)
_computing_cell_refinement       'RIGAKU CrystalClear'
_computing_data_collection       'RIGAKU CrystalClear'
_computing_data_reduction        'RIGAKU CrystalClear'
_computing_molecular_graphics    'Yadokari-XG 2009(Wakita Nemoto et al.)'
_computing_publication_material  'Yadokari-XG 2009(Wakita,Nemoto et al.)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      93(2)
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_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku VariMax Saturn'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'rotating-anode X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
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_diffrn_reflns_Laue_measured_fraction_full 0.998
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_diffrn_reflns_limit_h_min       -24
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_diffrn_reflns_limit_k_min       -17
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_diffrn_reflns_point_group_measured_fraction_full 0.998
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_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.490
_diffrn_reflns_theta_min         3.074
_exptl_absorpt_coefficient_mu    0.069
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_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Colorless
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_exptl_crystal_description       Prism
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_refine_ls_abs_structure_details
;
 Flack x determined using 1881 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.1(10)
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
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_refine_ls_number_reflns         9364
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0952
_refine_ls_R_factor_gt           0.0700
_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^)+(0.0770P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1510
_refine_ls_wR_factor_ref         0.1669
_reflns_Friedel_coverage         0.928
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.995
_reflns_number_gt                6697
_reflns_number_total             9364
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc04759b3.cif
_cod_data_source_block           4a
_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 

 Adding full bibliography for 1548427--1548445.cif.
;
_cod_database_code               1548445
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.984
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              8975