Supramolecular variations on a molecular theme: the structural diversity of phosphazenes (RNH)6P3N3 in the solid state
Bickley, Jamie F.; Bonar-Law, Richard; Lawson, Gavin T.; Richards, Philip I.; Rivals, Frederic; Steiner, Alexander; Zacchini, Stefano; Dalton Transactions  (2003) 1235–; doi:10.1039/b212308h

data_7012597
_publ_section_title
;
 Supramolecular variations on a molecular theme: the structural
 diversity of phosphazenes (RNH)6P3N3 in the solid state
;
_journal_issue                   7
_journal_name_full               'Dalton Transactions'
_journal_page_first              1235
_journal_paper_doi               10.1039/b212308h
_journal_year                    2003
_chemical_formula_sum            'C18 H48 N9 P3'
_chemical_formula_weight         483.56
_space_group_IT_number           148
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   36.840(10)
_cell_length_b                   36.840(10)
_cell_length_c                   10.799(4)
_cell_measurement_temperature    150(2)
_cell_volume                     12693(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0221
_diffrn_reflns_av_sigmaI/netI    0.0179
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       40
_diffrn_reflns_limit_k_min       -40
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            19266
_diffrn_reflns_theta_full        23.27
_diffrn_reflns_theta_max         23.27
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.233
_exptl_absorpt_correction_type   'not applied'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.139
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4752
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.781
_refine_diff_density_min         -0.377
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         4045
_refine_ls_number_restraints     61
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0563
_refine_ls_R_factor_gt           0.0492
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0593P)^2^+57.2946P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1264
_refine_ls_wR_factor_ref         0.1320
_reflns_number_gt                3539
_reflns_number_total             4045
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b212308h.txt
_cod_data_source_block           P3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Rhombohedral' changed to 'rhombohedral'
according to '/home/saulius/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 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               7012597