Structural investigations of phosphorus–nitrogen compounds. 7. Relationships between physical properties, electron densities, reaction mechanisms and hydrogen-bonding motifs of N~3~P~3~Cl~(6{-~<i>n</i>)}(NHBu^<i>t^</i>)~<i>n~</i> derivatives
Bartlett, Stewart W.; Coles, Simon J.; Davies, David B.; Hursthouse, Michael B.; İbişogundefinedlu, Hanife; Kiliç, Adem; Shaw, Robert A.; Ün, İlker; Acta Crystallographica Section B 62 (2006) 321–329; doi:10.1107/S0108768106000851

data_2100432
_publ_section_title
;
 Structural investigations of phosphorus--nitrogen compounds. 7.
 Relationships between physical properties, electron densities,
 reaction mechanisms and hydrogen-bonding motifs of
 N~3~P~3~Cl~(6{-~<i>n</i>)}(NHBu^<i>t^</i>)~<i>n~</i> derivatives
;
_journal_coeditor_code           DE5025
_journal_date_accepted           2006-01-08
_journal_date_recd_electronic    2005-11-02
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              321
_journal_page_last               329
_journal_paper_category          FA
_journal_paper_doi               10.1107/S0108768106000851
_journal_volume                  62
_journal_year                    2006
_chemical_formula_sum            'C8 H20 Cl4 N5 P3'
_chemical_formula_weight         421.00
_chemical_melting_point          394.15
_chemical_name_systematic
;
 1,1-bis(tert-butylamino)-3,3,5,5-tetrachlorocyclotriphosphazene
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.3441(7)
_cell_length_b                   11.9481(4)
_cell_length_c                   15.9661(7)
_cell_measurement_reflns_used    29220
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     3880.9(3)
_computing_cell_refinement       'DENZO & COLLECT'
_computing_data_collection
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, 1998)'
_computing_data_reduction        'DENZO & COLLECT'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0783
_diffrn_reflns_av_sigmaI/netI    0.0881
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            29635
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.92
_exptl_absorpt_coefficient_mu    0.854
_exptl_absorpt_correction_T_max  0.9505
_exptl_absorpt_correction_T_min  0.8754
_exptl_absorpt_process_details   'SORTAV (Blessing, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.441
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.428
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.08(8)
_refine_ls_extinction_coef       0.0041(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     414
_refine_ls_number_reflns         8587
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0974
_refine_ls_R_factor_gt           0.0530
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0134P)^2^+2.2238P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0926
_refine_ls_wR_factor_ref         0.1072
_reflns_number_gt                5744
_reflns_number_total             8587
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            de5025.cif
_cod_data_source_block           3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 

The following automatic conversions were performed:

'_chemical_melting_point' value '121\%C' was changed to '394.15' - it
was converted from degrees Celsius(C) to Kelvins(K).

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '121\%C' was changed to '394.15' - it
was converted from degrees Celsius(C) to
Kelvins(K).

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               2100432