Eight- and 16-Membered Cyanuric-Sulfanuric Ring Systems: C2N4S2→ C2N3S Ring Contraction
Tristram Chivers; Monica P. Gibson; Masood Parvez; Ignacio Vargas-Baca; Inorganic Chemistry 39 (2000) 1697–1704; doi:10.1021/ic991314u

data_4320886
_publ_contact_author
;
    Masood Parvez
    Department of Chemistry
    University of Calgary
    2500 University Drive N.W.
    Calgary, Alberta, Canada T2N 1N4  
;
_publ_contact_author_email       ' parvez@ucalgary.ca '
_publ_contact_author_fax         ' (403)289-9488 '
_publ_contact_author_phone       ' (403)220-5348 '
_publ_section_title
;
 Eight- and 16-Membered Cyanuric-Sulfanuric Ring Systems:
 C2N4S2\\rightarrow C2N3S Ring Contraction
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1697
_journal_page_last               1704
_journal_paper_doi               10.1021/ic991314u
_journal_volume                  39
_journal_year                    2000
_chemical_formula_sum            'C28 H18 F6 N4 O2 S2'
_chemical_formula_weight         620.58
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 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                 101.304(16)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.316(2)
_cell_length_b                   29.508(5)
_cell_length_c                   12.9095(15)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293
_cell_measurement_theta_max      13.0
_cell_measurement_theta_min      7.5
_cell_volume                     2732.8(9)
_computing_cell_refinement
'MSC/AFC Diffractometer Control (Molecular Structure Corporation, 1988)'
_computing_data_collection
'MSC/AFC Diffractometer Control (Molecular Structure Corporation, 1988)'
_computing_data_reduction
'TEXSAN (Molecular Structure Corporation, 1994)'
_computing_molecular_graphics
'TEXSAN (Molecular Structure Corporation, 1994)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SAPI91 (Fan, 1991)'
_diffrn_ambient_temperature      293
_diffrn_measurement_device_type  Rigaku-AFC6S
_diffrn_measurement_method       ' \w-2\q '
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0743
_diffrn_reflns_av_sigmaI/netI    0.1754
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5230
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         2.62
_diffrn_standards_decay_%        0.91
_diffrn_standards_interval_count 200
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.271
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.768
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
 \y-scan (3 reflections) (North, Phillips & Mathews, 1968) 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.508
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1264
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.569
_refine_diff_density_min         -0.760
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.954
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4825
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.954
_refine_ls_R_factor_all          0.2664
_refine_ls_R_factor_gt           0.0851
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1313P)^2^+19.73P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2493
_refine_ls_wR_factor_ref         0.3585
_reflns_number_gt                1615
_reflns_number_total             4825
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic991314u_3.cif
_cod_data_source_block           3b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value ' monoclinic ' changed to 'monoclinic'
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 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1313P)^2^+19.73P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.1313P)^2^+19.73P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2732.9(10)
_cod_database_code               4320886