Tetraplatinum cluster complexes bearing hydrophilic anchors as precursors for γ-Al2O3-supported platinum nanoparticles.
Tanaka, Shinji; Nagata, Naoto; Tagawa, Naoki; Hirata, Hirohito; Matsumoto, Shin-Ichi; Tsurugi, Hayato; Mashima, Kazushi; Dalton transactions (Cambridge, England : 2003) 42 (2013) 12662–12666; doi:10.1039/c3dt50670c

data_7021634
_publ_section_title
;
 Tetraplatinum cluster complexes bearing hydrophilic anchors as precursors
 for \g-Al2O3-supported platinum nanoparticles.
;
_journal_issue                   35
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12662
_journal_page_last               12666
_journal_paper_doi               10.1039/c3dt50670c
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C43 H49.50 O22.75 Pt4'
_chemical_formula_sum            'C43 H49.5 O22.75 Pt4'
_chemical_formula_weight         1710.71
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      9
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.0000
_cell_angle_beta                 128.220(2)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            4
_cell_length_a                   30.106(3)
_cell_length_b                   9.3586(8)
_cell_length_c                   23.564(2)
_cell_measurement_reflns_used    28614
_cell_measurement_temperature    113
_cell_measurement_theta_max      27.39
_cell_measurement_theta_min      3.02
_cell_volume                     5216.0(8)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO (Rigaku, ????)'
_computing_data_reduction        'RAPID AUTO'
_computing_molecular_graphics    'CrystalStructure 4.0'
_computing_publication_material  'CrystalStructure 4.0 (Rigaku, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare, et al., 1994)'
_diffrn_ambient_temperature      113
_diffrn_detector_area_resol_mean 10.000
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0686
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            39354
_diffrn_reflns_theta_full        27.39
_diffrn_reflns_theta_max         27.39
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    10.729
_exptl_absorpt_correction_T_max  0.585
_exptl_absorpt_correction_T_min  0.267
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSCOR (Rigaku, 1995)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.178
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3206.00
_exptl_crystal_size_max          0.280
_exptl_crystal_size_mid          0.210
_exptl_crystal_size_min          0.050
_refine_diff_density_max         1.770
_refine_diff_density_min         -1.740
_refine_ls_abs_structure_details
'Flack, H. D. (1983), Acta Cryst. A39, 876-881. 4965 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.319(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.155
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     615
_refine_ls_number_reflns         10880
_refine_ls_number_restraints     74
_refine_ls_R_factor_gt           0.0390
_refine_ls_shift/su_max          0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0266P)^2^+56.8678P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.1041
_reflns_number_gt                9108
_reflns_number_total             10880
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c3dt50670c.txt
_cod_data_source_block           synd47-2-tgw-Pt4OH4
_cod_original_formula_sum        'C43 H49.50 O22.75 Pt4'
_cod_database_code               7021634