Group 1 Bis(iminophosphorano)methanides, Part 2:N-Aryl Derivatives of the Sterically Demanding Methanes H2C(PPh2NR)2(R = 2,4,6-trimethylphenyl or 2,6-diisopropylphenyl)
Wooles, Ashley J.; Gregson, Matthew; Robinson, Sarah; Cooper, Oliver J.; Mills, David P.; Lewis, William; Blake, Alexander J.; Liddle, Stephen T.; Organometallics 30 (2011) 5326–; doi:10.1021/om200729x

data_4065344
_publ_section_title
;
 Group 1 Bis(iminophosphorano)methanides, Part 2:N-Aryl Derivatives of the
 Sterically Demanding Methanes H2C(PPh2NR)2(R = 2,4,6-trimethylphenyl or
 2,6-diisopropylphenyl)
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              5326
_journal_paper_doi               10.1021/om200729x
_journal_volume                  30
_journal_year                    2011
_chemical_formula_moiety         'C43 H43 Cs N2 P2, 0.5(C4 H8 O)'
_chemical_formula_sum            'C45 H47 Cs N2 O0.5 P2'
_chemical_formula_weight         818.70
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           148
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   'geom, Me from difmap'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   27.4890(16)
_cell_length_b                   27.4890(16)
_cell_length_c                   28.0813(14)
_cell_measurement_reflns_used    4956
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      75.08
_cell_measurement_theta_min      3.65
_cell_volume                     18376.6(18)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.52 (release 06-11-2009 CrysAlis171 .NET)
(compiled Nov  6 2009,16:24:50)
;
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'enCIFer (Allen et al., 2004); PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector_area_resol_mean 10.3613
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.947
_diffrn_measurement_device_type  'SuperNova, Single source at offset), Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Cu) X-ray Source'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.055
_diffrn_reflns_av_sigmaI/netI    0.057
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            14486
_diffrn_reflns_theta_full        67.50
_diffrn_reflns_theta_max         75.26
_diffrn_reflns_theta_min         3.65
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.065
_exptl_absorpt_correction_T_max  0.434
_exptl_absorpt_correction_T_min  0.115
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET) 
(compiled Jan  5 2010,16:28:46) 
Analytical numeric absorption correction using a multifaceted crystal 
model based on expressions derived by R.C. Clark & J.S. Reid. 
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897) 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.332
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             7560
_exptl_crystal_size_max          0.445
_exptl_crystal_size_mid          0.406
_exptl_crystal_size_min          0.244
_refine_diff_density_max         1.33
_refine_diff_density_min         -1.48
_refine_diff_density_rms
;0.11 
PROBLEM: Structure Contains Solvent Accessible VOIDS of . 868 A**3
RESPONSE: diffuse solvent regions in structure treated with 
SQUEEZE
;
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.05
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     439
_refine_ls_number_reflns         8006
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.05
_refine_ls_R_factor_all          0.0720
_refine_ls_R_factor_gt           0.0569
_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^)+(0.059P)^2^+189.7P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.141
_refine_ls_wR_factor_ref         0.149
_reflns_number_gt                6425
_reflns_number_total             8006
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om200729x_si_001.cif
_cod_data_source_block           3
_cod_original_cell_volume        18377(2)
_cod_original_sg_symbol_Hall     '-R 3 '
_cod_original_sg_symbol_H-M      'R -3'
_cod_original_formula_sum        'C45 H47 Cs N2 O0.50 P2'
_cod_database_code               4065344