Facile synthesis of a genuinely alkane-soluble but isolable lithium hydride transfer reagent
Stuart D. Robertson; Alan R. Kennedy; John J. Liggat; Robert E. Mulvey; Chem.Commun. 51 (2015) 5452–; doi:10.1039/C4cc06421F

data_7116749
_publ_section_title
;
 Facile synthesis of a genuinely alkane-soluble but isolable lithium
 hydride transfer reagent
;
_journal_name_full               Chem.Commun.
_journal_page_first              5452
_journal_paper_doi               10.1039/C4cc06421F
_journal_volume                  51
_journal_year                    2015
_chemical_formula_moiety         'C21 H44 Li N5'
_chemical_formula_sum            'C21 H44 Li N5'
_chemical_formula_weight         373.55
_chemical_properties_physical
'Air-sensitive, Moisture-sensitive, Oxygen-sensitive'
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   10.5102(3)
_cell_length_b                   18.8729(6)
_cell_length_c                   23.8796(6)
_cell_measurement_reflns_used    8611
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      28.3183
_cell_measurement_theta_min      3.0178
_cell_volume                     4736.7(2)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.40 (release 27-08-2010 CrysAlis171 .NET)
(compiled Aug 27 2010,11:50:40)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.40 (release 27-08-2010 CrysAlis171 .NET)
(compiled Aug 27 2010,11:50:40)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.40 (release 27-08-2010 CrysAlis171 .NET)
(compiled Aug 27 2010,11:50:40)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur E'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0515
_diffrn_reflns_av_sigmaI/netI    0.0422
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            38344
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         28.00
_diffrn_reflns_theta_min         3.02
_exptl_absorpt_coefficient_mu    0.062
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.88700
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.40 (release 27-08-2010 CrysAlis171 .NET)
(compiled Aug 27 2010,11:50:40)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.048
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1664
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.261
_refine_diff_density_min         -0.195
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         5472
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0855
_refine_ls_R_factor_gt           0.0543
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0388P)^2^+1.7028P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1035
_refine_ls_wR_factor_ref         0.1156
_reflns_number_gt                3964
_reflns_number_total             5472
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            c4cc06421f2.cif
_cod_data_source_block           sdr1403
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7116749