Structural study of silver(I) sulfonate complexes with pyrazine derivatives.
Liu, Hai-Yan; Wu, Hua; Ma, Jian-Fang; Song, Shu-Yan; Yang, Jin; Liu, Ying-Ying; Su, Zhong-Min; Inorganic chemistry 46 (2007) 7299–7311; doi:10.1021/ic070147s

data_4338874
_publ_section_title
;
 Structural study of silver(I) sulfonate complexes with pyrazine
 derivatives.
;
_journal_issue                   18
_journal_name_full               'Inorganic chemistry'
_journal_page_first              7299
_journal_page_last               7311
_journal_paper_doi               10.1021/ic070147s
_journal_volume                  46
_journal_year                    2007
_chemical_formula_moiety         'C16 H19 Ag N3 O4.50 S'
_chemical_formula_sum            'C16 H19 Ag N3 O4.5 S'
_chemical_formula_weight         465.27
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           161
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 -2"c'
_symmetry_space_group_name_H-M   'R 3 c :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            18
_cell_length_a                   21.949(7)
_cell_length_b                   21.949(7)
_cell_length_c                   20.220(5)
_cell_measurement_reflns_used    24181
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     8436(4)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        PROCESS-AUTO
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0384
_diffrn_reflns_av_sigmaI/netI    0.0277
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            26384
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.01
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    1.215
_exptl_absorpt_correction_T_max  0.624
_exptl_absorpt_correction_T_min  0.539
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Higashi,T (1995) Program for absorption correction. 
Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.648
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             4230
_exptl_crystal_size_max          0.627
_exptl_crystal_size_mid          0.431
_exptl_crystal_size_min          0.388
_refine_diff_density_max         0.969
_refine_diff_density_min         -0.266
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.082
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     241
_refine_ls_number_reflns         4109
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0342
_refine_ls_R_factor_gt           0.0312
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0607P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0869
_refine_ls_wR_factor_ref         0.0888
_reflns_number_gt                3822
_reflns_number_total             4109
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic070147s-file003.cif
_cod_data_source_block           compound-8
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      R3c
_cod_original_formula_sum        'C16 H19 Ag N3 O4.50 S'
_cod_database_code               4338874