Unusual luminescent octanuclear stellate platinacycle self-assembled by Pt‒Ag bonds
Falvello, Larry R.; Forniés, Juan; Lalinde, Elena; Menjón, Babil; García-Monforte, M. Angeles; Moreno, M. Teresa; Tomás, Milagros; Chemical Communications (Cambridge, United Kingdom)  (2007) 3838–3840; doi:10.1039/b706439j

data_7113245
_publ_section_title
;
 Unusual luminescent octanuclear stellate platinacycle self-assembled by
 Pt--Ag bonds
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   37
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              3838
_journal_page_last               3840
_journal_paper_doi               10.1039/b706439j
_journal_year                    2007
_chemical_formula_moiety         ' (C16 H36 N 1+)2, C24 H2 Cl20 O2 Pt2 2-'
_chemical_formula_sum            'C56 H74 Cl20 N2 O2 Pt2'
_chemical_formula_weight         1906.35
_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_creation_method           SHELXL-97
_cell_angle_alpha                77.186(1)
_cell_angle_beta                 73.546(1)
_cell_angle_gamma                82.648(1)
_cell_formula_units_Z            2
_cell_length_a                   12.8464(5)
_cell_length_b                   16.2732(7)
_cell_length_c                   18.0701(8)
_cell_measurement_reflns_used    8208
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.68
_cell_measurement_theta_min      2.29
_cell_volume                     3524.1(3)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL (Bruker, 2001)'
_computing_publication_material  'SHELXTL (Bruker, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'D8 SMART Apex'
_diffrn_measurement_method       \w-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0414
_diffrn_reflns_av_sigmaI/netI    0.0664
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            31931
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.77
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.765
_exptl_absorpt_correction_T_max  0.8703
_exptl_absorpt_correction_T_min  0.6056
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS (Bruker, 2001)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.797
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1872
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.513
_refine_diff_density_min         -1.615
_refine_diff_density_rms         0.153
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     865
_refine_ls_number_reflns         15610
_refine_ls_number_restraints     698
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0618
_refine_ls_R_factor_gt           0.0454
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0444P)^2^+6.7262P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1028
_refine_ls_wR_factor_ref         0.1102
_reflns_number_gt                12314
_reflns_number_total             15610
_reflns_threshold_expression     I>2s\(I)
_cod_duplicate_entry             7102136
_cod_data_source_file            b706439j.txt
_cod_data_source_block           ial34a
_cod_database_code               7113245