Diborane Heterolysis and P(V) Reduction by Ph3P=O Coordination to Magnesium
Hill, Michael; Mahon, Mary F.; Pecharman, Anne-Frederique; McMullin, Claire; Rajabi, Nasir A.; Chemical Communications  (2019) –; doi:10.1039/C9CC04294F

data_7123766
_publ_section_title
;
 Diborane Heterolysis and P(V) Reduction by Ph3P=O Coordination to
 Magnesium
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC04294F
_journal_year                    2019
_chemical_formula_moiety         '2(C53 H68 B Mg N2 O4 P)'
_chemical_formula_sum            'C106 H136 B2 Mg2 N4 O8 P2'
_chemical_formula_weight         1726.36
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_audit_creation_date             2018-06-11
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-05-09 deposited with the CCDC.    2019-07-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 100.589(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   35.0559(10)
_cell_length_b                   13.3465(2)
_cell_length_c                   22.2186(7)
_cell_measurement_reflns_used    10746
_cell_measurement_temperature    149.9(5)
_cell_measurement_theta_max      72.0010
_cell_measurement_theta_min      3.8410
_cell_volume                     10218.5(5)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 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_environment      N~2~
_diffrn_ambient_temperature      149.9(5)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.1150
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.986
_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  0.0589
_diffrn_reflns_av_unetI/netI     0.0619
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       42
_diffrn_reflns_limit_h_min       -43
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            67342
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         72.527
_diffrn_reflns_theta_min         2.565
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Cu) X-ray Source'
_exptl_absorpt_coefficient_mu    0.932
_exptl_absorpt_correction_T_max  0.998
_exptl_absorpt_correction_T_min  0.996
_exptl_absorpt_correction_type   gaussian
_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            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.122
_exptl_crystal_description       block
_exptl_crystal_F_000             3712
_exptl_crystal_size_max          0.096
_exptl_crystal_size_mid          0.065
_exptl_crystal_size_min          0.035
_refine_diff_density_max         0.468
_refine_diff_density_min         -0.297
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1145
_refine_ls_number_reflns         19993
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0897
_refine_ls_R_factor_gt           0.0535
_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^)+(0.0612P)^2^+1.3485P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1226
_refine_ls_wR_factor_ref         0.1410
_reflns_Friedel_coverage         0.000
_reflns_number_gt                13465
_reflns_number_total             19993
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc04294f2.cif
_cod_data_source_block           s18msh97-cpd-12
_cod_database_code               7123766
_shelx_shelxl_version_number     2014/7
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C12(H12), C15(H15), C24(H24), C27(H27), C65(H65), C68(H68), C77(H77), C80(H80)
2.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C8(H8), C9(H9), C10(H10), C20(H20), C21(H21), C22(H22), C31(H31),
 C32(H32), C33(H33), C34(H34), C35(H35), C37(H37), C38(H38), C39(H39), C40(H40),
  C41(H41), C43(H43), C44(H44), C45(H45), C46(H46), C47(H47), C56(H56),
 C61(H61), C62(H62), C63(H63), C73(H73), C74(H74), C75(H75), C84(H84), C85(H85),
  C86(H86), C87(H87), C88(H88), C90(H90), C91(H91), C92(H92), C93(H93),
 C94(H94), C96(H96), C97(H97), C98(H98), C99(H99), C100(H100)
2.c Idealised Me refined as rotating group:
 C1(H1A,H1B,H1C), C5(H5A,H5B,H5C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C),
 C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C25(H25A,H25B,H25C), C26(H26A,H26B,
 H26C), C28(H28A,H28B,H28C), C29(H29A,H29B,H29C), C50(H50A,H50B,H50C), C51(H51A,
 H51B,H51C), C52(H52A,H52B,H52C), C53(H53A,H53B,H53C), C54(H54A,H54B,H54C),
 C58(H58A,H58B,H58C), C66(H66A,H66B,H66C), C67(H67A,H67B,H67C), C69(H69A,H69B,
 H69C), C70(H70A,H70B,H70C), C78(H78A,H78B,H78C), C79(H79A,H79B,H79C), C81(H81A,
 H81B,H81C), C82(H82A,H82B,H82C), C103(H10A,H10B,H10C), C104(H10D,H10E,H10F),
 C105(H10G,H10H,H10I), C106(H10J,H10K,H10L)
;