The Nature of the Heavy Alkaline Earth Metal-Hydrogen Bond: Synthesis, Structure, and Reactivity of a Cationic Strontium Hydride Cluster.
Mukherjee, Debabrata; Höllerhage, Thomas; Leich, Valeri; Spaniol, Thomas P.; Englert, Ulli; Maron, Laurent; Okuda, Jun; Journal of the American Chemical Society  (2018) –; doi:10.1021/jacs.7b13796

data_4127182
_publ_section_title
;
 The Nature of the Heavy Alkaline Earth Metal-Hydrogen Bond: Synthesis,
 Structure, and Reactivity of a Cationic Strontium Hydride Cluster.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b13796
_journal_year                    2018
_chemical_formula_sum            'C54 H95 N12 O0.4 Si Sr3'
_chemical_formula_weight         1209.76
_chemical_name_common            'cocrystal hydride - hydroxide'
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                86.7277(8)
_cell_angle_beta                 86.3258(9)
_cell_angle_gamma                77.2861(9)
_cell_formula_units_Z            2
_cell_length_a                   9.8237(3)
_cell_length_b                   16.7214(5)
_cell_length_c                   19.1764(6)
_cell_measurement_reflns_used    9475
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      32.57
_cell_measurement_theta_min      2.39
_cell_volume                     3063.49(16)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Bruker D8 gonimeter with APEX CCD detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'multilayer optics'
_diffrn_radiation_source         'Incoatec microsource'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0476
_diffrn_reflns_av_unetI/netI     0.0410
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            131522
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         35.048
_diffrn_reflns_theta_min         1.065
_exptl_absorpt_coefficient_mu    2.666
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.817
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.311
_exptl_crystal_description       plate
_exptl_crystal_F_000             1268
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.08
_refine_diff_density_max         2.445
_refine_diff_density_min         -0.942
_refine_diff_density_rms         0.100
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.057
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     721
_refine_ls_number_reflns         26759
_refine_ls_number_restraints     18
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0598
_refine_ls_R_factor_gt           0.0423
_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^)+(0.0500P)^2^+2.4000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1028
_refine_ls_wR_factor_ref         0.1099
_reflns_Friedel_coverage         0.000
_reflns_number_gt                21020
_reflns_number_total             26759
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b13796_si_002.cif
_cod_data_source_block           mixed
_cod_original_formula_sum        'C54 H95 N12 O0.40 Si Sr3'
_cod_database_code               4127182
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.604
_shelx_estimated_absorpt_t_max   0.815
_shelx_res_checksum              17243
_shelx_hkl_checksum              22176