Sodium phosphaethynolate, Na(OCP), as a “P” transfer reagent for the synthesis of N-heterocyclic carbene supported P3 and PAsP radicals
Tondreau, Aaron M.; Benkő, Zoltán; Harmer, Jeffrey R.; Grützmacher, Hansjörg; Chemical Science 5 (2014) 1545–; doi:10.1039/c3sc53140f

data_1513842
_publ_section_title
;
 Sodium phosphaethynolate, Na(OCP), as a &#x201C;P&#x201D; transfer
 reagent for the synthesis of N-heterocyclic carbene supported P3 and PAsP
 radicals
;
_journal_issue                   4
_journal_name_full               'Chemical Science'
_journal_page_first              1545
_journal_paper_doi               10.1039/c3sc53140f
_journal_volume                  5
_journal_year                    2014
_chemical_formula_moiety         'C54 H72 N4 P3'
_chemical_formula_sum            'C54 H72 N4 P3'
_chemical_formula_weight         870.07
_chemical_name_common
1,3-bis(1,3-bis(2,6-diisopropylphenyl)-1H-imidazol-2(3H)-ylidene)triphosphinyl
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                85.6800(10)
_cell_angle_beta                 89.6010(10)
_cell_angle_gamma                79.2550(10)
_cell_formula_units_Z            2
_cell_length_a                   11.9151(2)
_cell_length_b                   13.5428(2)
_cell_length_c                   15.8914(3)
_cell_measurement_reflns_used    5770
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.95
_cell_measurement_theta_min      2.17
_cell_volume                     2512.11(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0343
_diffrn_reflns_av_sigmaI/netI    0.0590
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            26055
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         1.29
_exptl_absorpt_coefficient_mu    0.157
_exptl_absorpt_correction_T_max  0.9799
_exptl_absorpt_correction_T_min  0.9485
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
'SADABS-2008/1 - Bruker AXS area detector scaling and absorption correction '
_exptl_crystal_colour            Purple
_exptl_crystal_density_diffrn    1.150
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             938
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.351
_refine_diff_density_min         -0.310
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     662
_refine_ls_number_reflns         11545
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0837
_refine_ls_R_factor_gt           0.0465
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0514P)^2^+0.7287P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1027
_refine_ls_wR_factor_ref         0.1180
_reflns_number_gt                7850
_reflns_number_total             11545
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3sc53140f.txt
_cod_data_source_block           nhcpppnhcdot
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      'P-1   '
_cod_database_code               1513842