A Spirocyclic System Comprising Both Phosphazane and Phosphazene Rings
Richards, Philip I.; Steiner, Alexander; Inorganic Chemistry 44 (2005) 275–281; doi:10.1021/ic048665f

data_4308372
_publ_section_title
;
 A Spirocyclic System Comprising Both Phosphazane and Phosphazene Rings
;
_journal_coden_ASTM              INOCAJ
_journal_issue                   2
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              275
_journal_page_last               281
_journal_paper_doi               10.1021/ic048665f
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'C36 H70 Cl4 N9 P3 Sb2'
_chemical_formula_weight         1107.22
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 114.263(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.723(3)
_cell_length_b                   12.771(2)
_cell_length_c                   19.949(3)
_cell_measurement_temperature    150(2)
_cell_volume                     4813.2(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_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 Apex'
_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  0.0883
_diffrn_reflns_av_sigmaI/netI    0.1007
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            12214
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    1.481
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.775
_exptl_absorpt_correction_type   semi-empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.528
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2256
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         1.182
_refine_diff_density_min         -1.031
_refine_diff_density_rms         0.130
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.949
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         4259
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.949
_refine_ls_R_factor_all          0.0859
_refine_ls_R_factor_gt           0.0492
_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^)+(0.0539P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1080
_refine_ls_wR_factor_ref         0.1198
_reflns_number_gt                2768
_reflns_number_total             4259
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic048665from20040923_075833_3.cif
_cod_data_source_block           4
_cod_database_code               4308372