Synthesis, characterization and phase transitions of the inorganic-organic layered perovskite-type hybrids [(C(n)H(2n+1)NH3)2PbI4], n = 7, 8, 9 and 10.
Lemmerer, Andreas; Billing, David G.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 1146–1157; doi:10.1039/c0dt01805h

data_7017476
_publ_section_title
;
 Synthesis, characterization and phase transitions of the
 inorganic-organic layered perovskite-type hybrids
 [(C(n)H(2n+1)NH3)2PbI4], n = 7, 8, 9 and 10.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1146
_journal_page_last               1157
_journal_paper_doi               10.1039/c0dt01805h
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         '2(C8 H20 N), I4 Pb'
_chemical_formula_sum            'C16 H40 I4 N2 Pb'
_chemical_formula_weight         975.29
_chemical_name_common
'bis(octylammonium)tetraiodoplumbate(ii) PHASE II'
_chemical_name_systematic
;
bis(octylammonium)tetraiodoplumbate(II) PHASE 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             2011-05-18T11:09:02-00:00
_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                   8.9817(4)
_cell_length_b                   8.6886(3)
_cell_length_c                   37.4821(18)
_cell_measurement_reflns_used    3892
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.99
_cell_measurement_theta_min      2.51
_cell_volume                     2925.0(2)
_computing_cell_refinement       'SAINT-Plus (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT-Plus and XPREP (Bruker, 2004)'
_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, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0687
_diffrn_reflns_av_unetI/netI     0.0458
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            10421
_diffrn_reflns_theta_full        25.5
_diffrn_reflns_theta_max         25.5
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    9.992
_exptl_absorpt_correction_T_max  0.8035
_exptl_absorpt_correction_T_min  0.0871
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'Bruker XPREP (Bruker, 2004)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.215
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1776
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.958
_refine_diff_density_min         -1.033
_refine_diff_density_rms         0.198
_refine_ls_extinction_coef       0.00120(7)
_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   1.278
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     107
_refine_ls_number_reflns         2724
_refine_ls_number_restraints     78
_refine_ls_restrained_S_all      1.286
_refine_ls_R_factor_all          0.0821
_refine_ls_R_factor_gt           0.065
_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^)+63.4215P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1289
_refine_ls_wR_factor_ref         0.1334
_reflns_number_gt                2081
_reflns_number_total             2724
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt01805h.txt
_cod_data_source_block           2b
_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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7017476