Synthesis and co-ordination chemistry of a novel multifunctional bis-phosphine containing a P–N–Si–N–P backbone
Aucott, Stephen M.; Clarke, Matthew L.; Slawin, Alexandra M. Z.; Woollins, J. Derek; Journal of the Chemical Society, Dalton Transactions  (2001) 972–; doi:10.1039/b009722p

data_7010489
_publ_section_title
;
 Synthesis and co-ordination chemistry of a novel multifunctional
 bis-phosphine containing a P--N--Si--N--P backbone
;
_journal_issue                   7
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              972
_journal_paper_doi               10.1039/b009722p
_journal_year                    2001
_chemical_formula_analytical     'C36 H34 N4 P2 Si'
_chemical_formula_moiety         'C36 H34 N4 P2 Si'
_chemical_formula_structural     'C36 H34 N4 P2 Si'
_chemical_formula_sum            'C36 H34 N4 P2 Si'
_chemical_formula_weight         612.70
_chemical_melting_point          ?
_chemical_name_systematic        5
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 105.9710(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.39310(10)
_cell_length_b                   13.8309(2)
_cell_length_c                   11.72530(10)
_cell_measurement_reflns_used    92
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      168
_cell_measurement_theta_min      12
_cell_volume                     1620.41(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       CCD
_diffrn_measurement_method       'phi and 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  0.0184
_diffrn_reflns_av_sigmaI/netI    0.0297
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10133
_diffrn_reflns_theta_max         23.26
_diffrn_reflns_theta_min         1.81
_diffrn_standards_decay_%        -
_diffrn_standards_interval_count -
_diffrn_standards_interval_time  -
_diffrn_standards_number         -
_exptl_absorpt_coefficient_mu    0.203
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.784994
_exptl_absorpt_correction_type   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.256
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    -
_exptl_crystal_description       prism
_exptl_crystal_F_000             644
_exptl_crystal_size_max          .34
_exptl_crystal_size_mid          .2
_exptl_crystal_size_min          .2
_refine_diff_density_max         0.112
_refine_diff_density_min         -0.108
_refine_diff_density_rms         0.022
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(5)
_refine_ls_extinction_coef       0.0071(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   0.967
_refine_ls_goodness_of_fit_obs   0.989
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     389
_refine_ls_number_reflns         4619
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.989
_refine_ls_restrained_S_obs      0.989
_refine_ls_R_factor_all          0.0275
_refine_ls_R_factor_obs          0.0237
_refine_ls_shift/esd_max         -0.008
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0391P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0607
_refine_ls_wR_factor_obs         0.0582
_reflns_number_observed          4278
_reflns_number_total             4629
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b009722p.txt
_cod_data_source_block           5
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/adriana/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '-' was changed to '?' - the value is
undefined or not given.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value '-' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0391P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0391P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7010489