Lead(II) tetrafluoroborate and hexafluorophosphate complexes with crown ethers, mixed O/S- and O/Se-donor macrocycles and unusual [BF(4)](-) and [PF(6)](-) coordination.
Farina, Paolo; Latter, Thomas; Levason, William; Reid, Gillian; Dalton transactions (Cambridge, England : 2003) 42 (2013) 4714–4724; doi:10.1039/c3dt32999b

data_7022769
_publ_section_title
;
 Lead(II) tetrafluoroborate and hexafluorophosphate complexes with crown
 ethers, mixed O/S- and O/Se-donor macrocycles and unusual [BF(4)](-) and
 [PF(6)](-) coordination.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4714
_journal_page_last               4724
_journal_paper_doi               10.1039/c3dt32999b
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C12 H24 O4 Pb Se2 2+, 2(B F4 1-)'
_chemical_formula_sum            'C12 H24 B2 F8 O4 Pb Se2'
_chemical_formula_weight         771.04
_chemical_name_systematic
;
(1,4,10,13-tetraoxa-7,16-diselenacyclooctadecane)lead(II) tetrafluoroborate
;
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-06-30
_audit_creation_method           'SHELXL-97 + hand edit'
_audit_update_record             '2012-07-01 Moved C6 for better connectivity'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.693(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.953(5)
_cell_length_b                   12.060(5)
_cell_length_c                   15.530(7)
_cell_measurement_reflns_used    5363
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.4
_cell_volume                     2051.3(16)
_computing_cell_refinement       'CrystalClear-SM Expert 2.0 r7 (Rigaku, 2011)'
_computing_data_collection       'CrystalClear-SM Expert 2.0 r7 (Rigaku, 2011)'
_computing_data_reduction        'CrystalClear-SM Expert 2.0 r7 (Rigaku, 2011)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            'Rigaku HG Saturn724+ (2x2 bin mode)'
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device       'Four-circle \k diffractometer'
_diffrn_measurement_device_type  'Rigaku AFC12 '
_diffrn_measurement_method       'Profile data from \w-scans'
_diffrn_radiation_collimation    'Confocal mirrors, VHF VariMax '
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0575
_diffrn_reflns_av_sigmaI/netI    0.0708
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            6169
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.38
_diffrn_source                   'Rotating anode X-ray tube'
_diffrn_source_type              'Rigaku FR-E+ Superbright'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    11.862
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.694
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;Jacobson, R.A. (1998). REQAB. Private communication to the
Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.497
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1440
_exptl_crystal_size_max          0.03
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.229
_refine_diff_density_min         -1.107
_refine_diff_density_rms         0.254
_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     132
_refine_ls_number_reflns         2340
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0564
_refine_ls_R_factor_gt           0.0391
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+24.4500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0699
_refine_ls_wR_factor_ref         0.0753
_reflns_number_gt                1930
_reflns_number_total             2340
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3dt32999b.txt
_cod_data_source_block           12paf089ra
_cod_original_cell_volume        2051.2(14)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7022769