Bis(triphenylphosphoranylidene)ammonium iodide
Beckett, Michael A.; Horton, Peter N.; Hursthouse, Michael B.; Timmis, James L.; Acta Crystallographica Section E 66 (2010) o319–; doi:10.1107/S1600536810000267

data_2224894
_publ_section_title
;
 Bis(triphenylphosphoranylidene)ammonium iodide
;
_journal_coeditor_code           CI2990
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o319
_journal_paper_doi               10.1107/S1600536810000267
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C36 H30 N P2 +, I -'
_chemical_formula_moiety         'C36 H30 N P2 +, I -'
_chemical_formula_sum            'C36 H30 I N P2'
_chemical_formula_weight         665.45
_chemical_name_systematic
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Bis(triphenylphosphoranylidene)ammonium iodide
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 91.3370(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   29.6827(6)
_cell_length_b                   10.1604(2)
_cell_length_c                   20.2114(4)
_cell_measurement_reflns_used    14269
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      2.910
_cell_volume                     6093.9(2)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) and COLLECT (Hooft, 1998)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean '4096x4096pixels / 62x62mm'
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
'Bruker--Nonius APEXII CCD camera on \k-goniostat'
_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  0.0539
_diffrn_reflns_av_sigmaI/netI    0.0501
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            52122
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.91
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.182
_exptl_absorpt_correction_T_max  0.9433
_exptl_absorpt_correction_T_min  0.8154
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2007)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.451
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Slab
_exptl_crystal_F_000             2688
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.637
_refine_diff_density_min         -0.593
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.111
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     721
_refine_ls_number_reflns         13900
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.111
_refine_ls_R_factor_all          0.0613
_refine_ls_R_factor_gt           0.0483
_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^)+23.1366P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0966
_refine_ls_wR_factor_ref         0.1045
_reflns_number_gt                11771
_reflns_number_total             13900
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci2990.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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      'P 21/c'
_cod_database_code               2224894
_cod_database_fobs_code          2224894