Proton to Hydride Umpolung at a Phosphonium Center Via Electron Relay: A New Strategy for Main-Group Based Water Reduction
Oishi, Takumi; Lugo-Fuentes, Leonardo I.; Jing, Yichuan; Jimenez-Halla, Jose Oscar Carlos; Barroso-Flores, Joaquín; Nakamoto, Masaaki; Yamamoto, Yohsuke; Tsunoji, Nao; Shang, Rong; Chemical Science  (2021) –; doi:10.1039/D1SC05135K

data_1565234
_publ_section_title
;
 Proton to Hydride Umpolung at a Phosphonium Center Via Electron Relay: A
 New Strategy for Main-Group Based Water Reduction
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/D1SC05135K
_journal_year                    2021
_chemical_formula_sum            'C42 H59 B2 O4 P'
_chemical_formula_weight         680.48
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2021-09-10 deposited with the CCDC.	2021-11-15 downloaded from the CCDC.
;
_cell_angle_alpha                96.766(7)
_cell_angle_beta                 96.231(14)
_cell_angle_gamma                104.461(9)
_cell_formula_units_Z            2
_cell_length_a                   10.542(8)
_cell_length_b                   10.722(8)
_cell_length_c                   17.445(14)
_cell_measurement_reflns_used    7333
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      27.93
_cell_measurement_theta_min      2.38
_cell_volume                     1876(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0336
_diffrn_reflns_av_unetI/netI     0.0445
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            22543
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         28.044
_diffrn_reflns_theta_min         1.984
_exptl_absorpt_coefficient_mu    0.114
_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.942
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.204
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.121
_exptl_crystal_size_mid          0.107
_exptl_crystal_size_min          0.097
_refine_diff_density_max         0.372
_refine_diff_density_min         -0.321
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     504
_refine_ls_number_reflns         8919
_refine_ls_number_restraints     216
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0570
_refine_ls_R_factor_gt           0.0430
_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^)+(0.0450P)^2^+0.8169P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1023
_refine_ls_wR_factor_ref         0.1103
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7177
_reflns_number_total             8919
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1sc05135k2.cif
_cod_data_source_block           3_H2O
_cod_original_cell_volume        1877(3)
_cod_database_code               1565234
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.986
_shelx_estimated_absorpt_t_max   0.989
_shelx_res_checksum              29411
_shelx_hkl_checksum              62531