Inorganic?organic hybrid materials incorporating primary cyclic ammonium cations: The lead iodide series
Billing, David G.; Lemmerer, Andreas; CrystEngComm 9 (2007) 236–; doi:10.1039/b618196a

data_7202664
_publ_section_title
;
 Inorganic?organic hybrid materials incorporating primary cyclic
 ammonium cations: The lead iodide series
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              236
_journal_paper_doi               10.1039/b618196a
_journal_volume                  9
_journal_year                    2007
_chemical_formula_moiety         '2(C6 H14 N), I4 Pb'
_chemical_formula_sum            'C12 H28 I4 N2 Pb'
_chemical_formula_weight         915.15
_chemical_name_common            bis(cyclohexylammonium)tetraiodoplumbate(ii)
_chemical_name_systematic
;
bis(cyclohexylammonium)tetraiodoplumbate(II)
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2005-10-27T11:25:20-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.1677(15)
_cell_length_b                   8.7335(14)
_cell_length_c                   27.276(5)
_cell_measurement_reflns_used    906
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.285
_cell_measurement_theta_min      2.675
_cell_volume                     2183.9(6)
_computing_cell_refinement       'Bruker SAINT+ (Bruker, 1999)'
_computing_data_collection       'Bruker SMART-NT (Bruker, 1998)'
_computing_data_reduction        'Bruker SAINT+ (Bruker, 1999)'
_computing_molecular_graphics
;
Ortep-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 1999)
;
_computing_publication_material
;
WinGX publication routines (Farrugia, 1999) and PLATON (Spek, 2002)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997b)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device_type  'SMART 1K CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0724
_diffrn_reflns_av_unetI/netI     0.043
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            13519
_diffrn_reflns_theta_full        28
_diffrn_reflns_theta_max         28
_diffrn_reflns_theta_min         1.49
_exptl_absorpt_coefficient_mu    13.373
_exptl_absorpt_correction_T_max  0.512
_exptl_absorpt_correction_T_min  0.0577
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'Bruker XPREP (Bruker, 1999)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.783
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1632
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.864
_refine_diff_density_min         -1.695
_refine_diff_density_rms         0.214
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     152
_refine_ls_number_reflns         2633
_refine_ls_number_restraints     246
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0511
_refine_ls_R_factor_gt           0.0315
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0318P)^2^+1.3770P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.069
_refine_ls_wR_factor_ref         0.0749
_reflns_number_gt                1986
_reflns_number_total             2633
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b618196a.txt
_cod_data_source_block           3ac2l_a
_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 
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_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7202664