Aqueous Chemistry of Chlorocyclophosphazenes: Phosphates {PO2}, Phosphamides {P(O)NHR}, and the first Phosphites {PHO} and Pyrophosphates {(PO)2O} of These Heterocycles
Joanne Ledger; Ramamoorthy Boomishankar; Alexander Steiner; Inorganic Chemistry 49 (2010) 3896–3904; doi:10.1021/ic100076t

data_4315325
_publ_section_title
;
 Aqueous Chemistry of Chlorocyclophosphazenes: Phosphates {PO2},
 Phosphamides {P(O)NHR}, and the first Phosphites {PHO} and Pyrophosphates
 {(PO)2O} of These Heterocycles
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3896
_journal_page_last               3904
_journal_paper_doi               10.1021/ic100076t
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C105 H222 K6 N42 O6 P18'
_chemical_formula_weight         2961.31
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 94.812(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   19.7445(18)
_cell_length_b                   15.9190(14)
_cell_length_c                   24.802(2)
_cell_measurement_temperature    100(2)
_cell_volume                     7768.1(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker Smart Apex'
_diffrn_measurement_method       /w
_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  0.0758
_diffrn_reflns_av_sigmaI/netI    0.0918
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            31072
_diffrn_reflns_theta_full        22.49
_diffrn_reflns_theta_max         22.49
_diffrn_reflns_theta_min         4.13
_exptl_absorpt_coefficient_mu    0.413
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.596
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3156
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.355
_refine_diff_density_min         -0.340
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     762
_refine_ls_number_reflns         10059
_refine_ls_number_restraints     266
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.1180
_refine_ls_R_factor_gt           0.0810
_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^)+(0.0871P)^2^+22.9154P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1854
_refine_ls_wR_factor_ref         0.2035
_reflns_number_gt                6961
_reflns_number_total             10059
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic100076t_si_002_8.cif
_cod_data_source_block           bsr52a
_cod_original_cell_volume        7768.0(12)
_cod_database_code               4315325