Polyhedral C2@Agn cages distorted by ancillary pyridine N-oxide ligands in silver-acetylenediide complexes.
Zhao, Xiao-Li; Zhang, Lin-Ping; Mak, Thomas C. W.; Dalton transactions (Cambridge, England : 2003)  (2006) 3141–3146; doi:10.1039/b601767c

data_7007214
_publ_section_title
;
 Polyhedral C2@Agn cages distorted by ancillary pyridine N-oxide
 ligands in silver-acetylenediide complexes.
;
_journal_issue                   25
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3141
_journal_page_last               3146
_journal_paper_doi               10.1039/b601767c
_journal_year                    2006
_chemical_formula_sum            'C44 H24 Ag12 F24 N4 O20'
_chemical_formula_weight         2679.11
_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                87.465(2)
_cell_angle_beta                 82.131(2)
_cell_angle_gamma                77.8420(10)
_cell_formula_units_Z            2
_cell_length_a                   8.4949(6)
_cell_length_b                   16.6402(12)
_cell_length_c                   23.5116(17)
_cell_measurement_temperature    293(2)
_cell_volume                     3218.0(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0378
_diffrn_reflns_av_sigmaI/netI    0.0918
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            15648
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    3.705
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.030785
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.765
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2512
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         2.513
_refine_diff_density_min         -1.932
_refine_diff_density_rms         0.171
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     964
_refine_ls_number_reflns         12568
_refine_ls_number_restraints     22
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.1141
_refine_ls_R_factor_gt           0.0617
_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^)+(0.0580P)^2^+0.9157P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1201
_refine_ls_wR_factor_ref         0.1421
_reflns_number_gt                7751
_reflns_number_total             12568
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b601767c.txt
_cod_data_source_block           compound2
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7007214