Enlargement of Globular Silver Alkynide Cluster via Core Transformation
Sam C. K. Hau; Ping-Shing Cheng; Thomas C. W. Mak; Journal of the American Chemical Society 134 (2012) 2922–2925; doi:10.1021/ja211438q

data_4117468
_publ_section_title
;
 Enlargement of Globular Silver Alkynide Cluster via Core Transformation
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2922
_journal_page_last               2925
_journal_paper_doi               10.1021/ja211438q
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C96 H132 Ag14 Br N O3'
_chemical_formula_weight         2938.12
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           148
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   24.5343(15)
_cell_length_b                   24.5343(15)
_cell_length_c                   13.9815(9)
_cell_measurement_temperature    173(2)
_cell_volume                     7288.4(8)
_computing_cell_refinement       SAINT(Bruker,2001)
_computing_data_collection       APEX2(Bruker,2003)
_computing_data_reduction        APEX2(Bruker,2003)
_computing_molecular_graphics    DIAMOND
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX II CCD diffractometer'
_diffrn_measurement_method       '\f and \w scan'
_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  0.0740
_diffrn_reflns_av_sigmaI/netI    0.0163
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            80410
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         25.24
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    3.208
_exptl_absorpt_correction_T_max  0.4461
_exptl_absorpt_correction_T_min  0.3602
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.008
_exptl_crystal_description       block
_exptl_crystal_F_000             4296
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.912
_refine_diff_density_min         -1.705
_refine_diff_density_rms         0.151
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2939
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.112
_refine_ls_R_factor_all          0.0340
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0359P)^2^+65.6666P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0819
_refine_ls_wR_factor_ref         0.0839
_reflns_number_gt                2826
_reflns_number_total             2939
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja211438q_si_002_5.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               4117468