Rational reductive fusion of two heterometallic clusters: formation of a highly stable, intensely phosphorescent Au-Ag aggregate and application in two-photon imaging in human mesenchymal stem cells.
Koshevoy, Igor O; Lin, Yi-Chih; Chen, Yu-Chun; Karttunen, Antti J; Haukka, Matti; Chou, Pi-Tai; Tunik, Sergey P; Pakkanen, Tapani A; Chemical communications (Cambridge, England) 46 (2010) 1440–1442; doi:10.1039/b920001k

data_7105319
_publ_section_title
;
 Rational reductive fusion of two heterometallic clusters: formation of
 a highly stable, intensely phosphorescent Au-Ag aggregate and
 application in two-photon imaging in human mesenchymal stem cells.
;
_journal_issue                   9
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              1440
_journal_page_last               1442
_journal_paper_doi               10.1039/b920001k
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety
'C276 H203 Ag4 Au14 P12, 2(C4 H10 O), 6(C2 H3 N), 4(F6 P)'
_chemical_formula_sum            'C296 H241 Ag4 Au14 F24 N6 O2 P16'
_chemical_formula_weight         8054.48
_chemical_name_systematic
;
?
;
_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                70.1969(5)
_cell_angle_beta                 87.4219(5)
_cell_angle_gamma                78.3190(4)
_cell_formula_units_Z            2
_cell_length_a                   17.4680(2)
_cell_length_b                   27.4904(3)
_cell_length_c                   32.2603(3)
_cell_measurement_reflns_used    327267
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     14268.8(3)
_computing_cell_refinement       'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2008)'
_computing_data_reduction        'Denzo/Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Diamond v.3.1f (Brandenburg, 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offset'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0452
_diffrn_reflns_av_sigmaI/netI    0.0605
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            208382
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    7.591
_exptl_absorpt_correction_T_max  0.6110
_exptl_absorpt_correction_T_min  0.3135
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS-2008/1 (Sheldrick, 2008)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.875
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             7650
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.07
_platon_squeeze_details
;
The contribution of the missing solvent to the calculated structure factors was taken
into account with the BYPASS algorithm (van der Sluis & Spek, 1990), implemented as the
SQUEEZE option in PLATON (Spek, 2003).
;
_refine_diff_density_max         2.463
_refine_diff_density_min         -2.242
_refine_diff_density_rms         0.183
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     3246
_refine_ls_number_reflns         61984
_refine_ls_number_restraints     535
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0736
_refine_ls_R_factor_gt           0.0444
_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^)+(0.0451P)^2^+53.6678P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0992
_refine_ls_wR_factor_ref         0.1076
_reflns_number_gt                44392
_reflns_number_total             61984
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b920001k.txt
_cod_data_source_block           1
_cod_database_code               7105319