Structural studies of lanthanide ion complexes of pure gold, pure silver and mixed metal (gold-silver) dicyanides.
Colis, Julie Clarissa F.; Larochelle, Christie; Staples, Richard; Herbst-Irmer, Regine; Patterson, Howard; Dalton transactions (Cambridge, England : 2003)  (2005) 675–679; doi:10.1039/b413967d

data_7007948
_publ_section_title
;
 Structural studies of lanthanide ion complexes of pure gold, pure
 silver and mixed metal (gold-silver) dicyanides.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              675
_journal_page_last               679
_journal_paper_doi               10.1039/b413967d
_journal_year                    2005
_chemical_formula_sum            'C6 H6 Ag Au2 La N6 O3'
_chemical_formula_weight         850.88
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           193
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-P 6c 2'
_symmetry_space_group_name_H-M   'P 63/m c m'
_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            2
_cell_length_a                   6.664(4)
_cell_length_b                   6.664(4)
_cell_length_c                   18.871(14)
_cell_measurement_reflns_used    230
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.78
_cell_measurement_theta_min      2.34
_cell_volume                     725.8(8)
_computing_cell_refinement       'SMART (BRUKER, V5.054, 1998)'
_computing_data_collection       'ASTRO (BRUKER, V5.007, 1997)'
_computing_data_reduction        'SAINT (BRUKER, V6.01, 1999)'
_computing_molecular_graphics    'SHELXTL (BRUKER, 1998, V5.1)'
_computing_publication_material  'XCIF (Sheldrick and BRUKER, 1997, V5.1)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '\w, 0.3 deg'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0370
_diffrn_reflns_av_sigmaI/netI    0.0252
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            4178
_diffrn_reflns_theta_full        28.47
_diffrn_reflns_theta_max         28.47
_diffrn_reflns_theta_min         2.16
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    24.375
_exptl_absorpt_correction_T_max  0.3225
_exptl_absorpt_correction_T_min  0.1942
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    3.894
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             740
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.775
_refine_diff_density_min         -1.266
_refine_diff_density_rms         0.196
_refine_ls_extinction_coef       0.0025(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.429
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     28
_refine_ls_number_reflns         363
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.427
_refine_ls_R_factor_all          0.0433
_refine_ls_R_factor_gt           0.0417
_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^)+(0.0000P)^2^+14.7550P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0759
_refine_ls_wR_factor_ref         0.0767
_reflns_number_gt                349
_reflns_number_total             363
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b413967d.txt
_cod_data_source_block           hp1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        725.7(8)
_cod_original_sg_symbol_H-M      P63/mcm
_cod_database_code               7007948