Syntheses, structures and flexible coordination of sterically demanding di- and "tri"-lithiated methandiides.
Sindlinger, Christian P.; Stasch, Andreas; Dalton transactions (Cambridge, England : 2003) 43 (2014) 14334–14345; doi:10.1039/c4dt01185f

data_7031054
_publ_section_title
;
 Syntheses, structures and flexible coordination of sterically demanding
 di- and &quot;tri&quot;-lithiated methandiides.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14334
_journal_page_last               14345
_journal_paper_doi               10.1039/c4dt01185f
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C45 H54 Li N O2 P2'
_chemical_formula_weight         709.77
_space_group_IT_number           14
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_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 101.269(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.9994(2)
_cell_length_b                   20.3004(3)
_cell_length_c                   20.0691(4)
_cell_measurement_reflns_used    14695
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      29.9425
_cell_measurement_theta_min      2.0653
_cell_volume                     3995.32(13)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_data_collection
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_data_reduction
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_molecular_graphics    'X-Seed (Barbour, 1999)'
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Xcalibur, Ruby, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0224
_diffrn_reflns_av_sigmaI/netI    0.0242
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            30658
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    0.146
_exptl_absorpt_correction_T_max  0.9507
_exptl_absorpt_correction_T_min  0.9306
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.180
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.45
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.361
_refine_diff_density_min         -0.295
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     510
_refine_ls_number_reflns         8728
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0476
_refine_ls_R_factor_gt           0.0366
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0386P)^2^+1.9629P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0872
_refine_ls_wR_factor_ref         0.0941
_reflns_number_gt                7299
_reflns_number_total             8728
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01185f2.cif
_cod_data_source_block           compound3
_cod_depositor_comments
'Adding full bibliography for 7031052--7031060.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7031054