2,2-trimethylenedioxy-4,4,6,6-tetrachlorocyclotriphosphazene
Kilic, A.; Odlyha, M.; Uslu, A.; Davies, David B.; Shaw, R.A.; Light, Mark E.; Coles, Simon J.; Huth, Susanne. L.; Hursthouse, Michael B.; Rutherford, J.S.; Crystal Structure Report Archive  (2007) 300–; doi:

data_1519840
_publ_section_title
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 2,2-trimethylenedioxy-4,4,6,6-tetrachlorocyclotriphosphazene
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_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              300
_journal_year                    2007
_chemical_formula_sum            'C3 H6 Cl4 N3 O2 P3'
_chemical_formula_weight         350.82
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.4804(14)
_cell_length_b                   10.6442(9)
_cell_length_c                   8.8479(7)
_cell_measurement_reflns_used    1662
_cell_measurement_temperature    274(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1269.6(2)
_computing_cell_refinement       'DENZO, COLLECT'
_computing_data_reduction        'DENZO, COLLECT'
_computing_molecular_graphics    'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      274(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD Area Detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0401
_diffrn_reflns_av_sigmaI/netI    0.0313
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            15640
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    1.293
_exptl_absorpt_correction_T_max  0.8816
_exptl_absorpt_correction_T_min  0.5938
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2.10 (Sheldrick, G.M., 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.835
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.285
_refine_diff_density_min         -0.353
_refine_diff_density_rms         0.074
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.23(10)
_refine_ls_extinction_coef       0.006(2)
_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   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         2801
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0380
_refine_ls_R_factor_gt           0.0334
_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^)+(0.0481P)^2^+0.4263P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0871
_refine_ls_wR_factor_ref         0.0905
_reflns_number_gt                2568
_reflns_number_total             2801
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            eCrystal-300.cif
_cod_data_source_block           2005sjc0007
_cod_depositor_comments
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Citation :
Kilic, A. and Odlyha, M. and Uslu, A. and Davies, David B. and 
Shaw, R.A. and Light, Mark E. and Coles, Simon J. and Huth, Susanne. L. and 
Hursthouse, Michael B. and Rutherford, J.S. (2007) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/300)

More at:
http://ecrystals.chem.soton.ac.uk/300/

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 3392 2015-05-12 13:50:21Z andrius 
;
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_database_code               1519840