Solid state and solution studies of lithium tris(n-butyl)magnesiates stabilised by Lewis donors.
Zaragoza-Calero, Silvia; Francos, Javier; Kennedy, Alan R.; O'Hara, Charles T; Dalton transactions (Cambridge, England : 2003) 44 (2015) 7258–7267; doi:10.1039/c5dt00435g

data_7034348
_publ_section_title
;
 Solid state and solution studies of lithium tris(n-butyl)magnesiates
 stabilised by Lewis donors.
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7258
_journal_page_last               7267
_journal_paper_doi               10.1039/c5dt00435g
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'C38 H90 Li2 Mg2 N4'
_chemical_formula_weight         665.64
_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
_audit_update_record
;
2015-01-28 deposited with the CCDC.
2015-03-09 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.8489(4)
_cell_length_b                   17.5351(6)
_cell_length_c                   19.0192(7)
_cell_measurement_reflns_used    4514
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      73.1856
_cell_measurement_theta_min      3.1885
_cell_volume                     4618.7(3)
_computing_cell_refinement       CrysalisPro
_computing_data_collection       CrysalisPro
_computing_data_reduction        CrysalisPro
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    SHELXS
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Oxford Diffraction Gemini E'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54180
_diffrn_reflns_av_R_equivalents  0.0224
_diffrn_reflns_av_sigmaI/netI    0.0269
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            14556
_diffrn_reflns_theta_full        70.00
_diffrn_reflns_theta_max         73.34
_diffrn_reflns_theta_min         6.39
_exptl_absorpt_coefficient_mu    0.641
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.66739
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.34.46 (release 25-11-2010 CrysAlis171 .NET)
(compiled Nov 25 2010,17:55:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.957
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1504
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.206
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.037
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         4547
_refine_ls_number_restraints     59
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0709
_refine_ls_R_factor_gt           0.0501
_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^)+(0.0785P)^2^+1.4110P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1387
_refine_ls_wR_factor_ref         0.1596
_reflns_number_gt                3327
_reflns_number_total             4547
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c5dt00435g2.cif
_cod_data_source_block           sz167c
_cod_depositor_comments
'Adding full bibliography for 7034348--7034352.cif.'
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7034348