Alkali metal complexes of sterically demanding amino-functionalized secondary phosphanide ligands.
Izod, Keith; Stewart, John C.; Clegg, William; Harrington, Ross W.; Dalton transactions (Cambridge, England : 2003)  (2007) 257–264; doi:10.1039/b614373c

data_7004988
_publ_section_title
;
 Alkali metal complexes of sterically demanding amino-functionalized
 secondary phosphanide ligands.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              257
_journal_page_last               264
_journal_paper_doi               10.1039/b614373c
_journal_year                    2007
_chemical_formula_moiety         'C24 H52 K N4 P Si2'
_chemical_formula_sum            'C24 H52 K N4 P Si2'
_chemical_formula_weight         522.95
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 93.555(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.4291(19)
_cell_length_b                   11.2424(15)
_cell_length_c                   19.756(3)
_cell_measurement_reflns_used    6111
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.25
_cell_measurement_theta_min      2.30
_cell_volume                     3198.6(8)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL and local programs'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR2002
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART 1K CCD diffractometer'
_diffrn_measurement_method       'thin-slice \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0307
_diffrn_reflns_av_sigmaI/netI    0.0263
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            22885
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.07
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.308
_exptl_absorpt_correction_T_max  0.915
_exptl_absorpt_correction_T_min  0.880
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.086
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1144
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         1.287
_refine_diff_density_min         -0.535
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         5630
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0675
_refine_ls_R_factor_gt           0.0531
_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^)+(0.0600P)^2^+4.7914P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1349
_refine_ls_wR_factor_ref         0.1486
_reflns_number_gt                4544
_reflns_number_total             5630
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b614373c.txt
_cod_data_source_block           ki257_compound_9
_cod_original_cell_volume        3198.5(7)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7004988