Lead halide inorganic‒organic hybrids incorporating diammonium cations
Lemmerer, Andreas; Billing, David G.; CrystEngComm 14 (2012) 1954–; doi:10.1039/c2ce06498g

data_7207474
_publ_section_title
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 Lead halide inorganic--organic hybrids incorporating diammonium cations
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              1954
_journal_paper_doi               10.1039/c2ce06498g
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'Br4 Pb, C4 H14 N2'
_chemical_formula_sum            'C4 H14 Br4 N2 Pb'
_chemical_formula_weight         617
_chemical_name_systematic
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(1,4-diammoniumbutane)tetrabromoplumbate(II)
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_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             2005-10-30T15:31:51-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                78.572(7)
_cell_angle_beta                 70.445(7)
_cell_angle_gamma                89.192(7)
_cell_formula_units_Z            2
_cell_length_a                   8.0070(18)
_cell_length_b                   8.389(2)
_cell_length_c                   10.586(3)
_cell_measurement_reflns_used    806
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.3025
_cell_measurement_theta_min      3.5635
_cell_volume                     655.7(3)
_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, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  '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  0.0412
_diffrn_reflns_av_unetI/netI     0.0431
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3549
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         25
_diffrn_reflns_theta_min         2.09
_exptl_absorpt_coefficient_mu    25.007
_exptl_absorpt_correction_T_max  0.0957
_exptl_absorpt_correction_T_min  0.0162
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'Bruker XPREP (Bruker, 1999)'
_exptl_crystal_colour            colourles
_exptl_crystal_density_diffrn    3.125
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedral
_exptl_crystal_F_000             548
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.12
_refine_diff_density_max         3.516
_refine_diff_density_min         -1.59
_refine_diff_density_rms         0.316
_refine_ls_extinction_coef       0.0227(9)
_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   1.121
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     104
_refine_ls_number_reflns         2276
_refine_ls_number_restraints     35
_refine_ls_restrained_S_all      1.113
_refine_ls_R_factor_all          0.0432
_refine_ls_R_factor_gt           0.0346
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0528P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0889
_refine_ls_wR_factor_ref         0.0918
_reflns_number_gt                1909
_reflns_number_total             2276
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06498g.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
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_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7207474