Diborane Heterolysis: Breaking and Making B-B bonds at Magnesium
Hill, Michael; Mahon, Mary F.; Pecharman, Anne-Frederique; Dalton Transactions  (2018) –; doi:10.1039/C8DT01451E

data_7046276
_publ_section_title
;
 Diborane Heterolysis: Breaking and Making B-B bonds at Magnesium
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/C8DT01451E
_journal_year                    2018
_chemical_formula_moiety         '2(C47 H77 B3 Mg N2 O6)'
_chemical_formula_sum            'C100 H168 B6 Mg2 N4 O12'
_chemical_formula_weight         1731.85
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
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_audit_creation_method
;
Olex2 1.2
(compiled 2017.07.20 svn.r3457 for OlexSys, GUI svn.r5370)
;
_audit_update_record
;
2018-02-19 deposited with the CCDC.
2018-05-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 122.981(8)
_cell_angle_gamma                90
_cell_formula_units_Z            8
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_cell_length_c                   37.898(2)
_cell_measurement_reflns_used    12566
_cell_measurement_temperature    150.01(10)
_cell_measurement_theta_max      71.5880
_cell_measurement_theta_min      2.7810
_cell_volume                     26246(3)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
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_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
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_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      150.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0598
_diffrn_reflns_av_unetI/netI     0.0677
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       55
_diffrn_reflns_limit_h_min       -52
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -46
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_diffrn_reflns_point_group_measured_fraction_full 0.998
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_diffrn_reflns_theta_max         70.076
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_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.515
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_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Numerical absorption correction based on gaussian integration over
            a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    0.877
_exptl_crystal_description       block
_exptl_crystal_F_000             7568
_exptl_crystal_size_max          0.229
_exptl_crystal_size_mid          0.197
_exptl_crystal_size_min          0.16
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_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.000078(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   0.945
_refine_ls_hydrogen_treatment    constr
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_refine_ls_R_factor_all          0.1381
_refine_ls_R_factor_gt           0.0781
_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^)+(0.1364P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2155
_refine_ls_wR_factor_ref         0.2621
_reflns_Friedel_coverage         0.000
_reflns_number_gt                11128
_reflns_number_total             24859
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt01451e2.cif
_cod_data_source_block           s17msh68
_cod_database_code               7046276
_shelxl_version_number           2014-3
_olex2_submission_special_instructions 'No special instructions were received'