Counter-anion role in the formation of two supramolecular complexes: [Ag~2~(DPP)~2~](ClO~4~)~2~·CH~3~CN and [Ag~2~(DPP)~2~(NO~3~)~2~] {DPP is <i>N</i>-[(diphenylphosphanyl)methyl]pyridin-4-amine}
Liang, Guang-Ming; Shang, Jing; Yang, Kun-Guo; Ma, Kai; Ni, Qing-Ling; Acta Crystallographica Section C 70 (2014) 379–383; doi:10.1107/S2053229614005725

data_2019448
_publ_section_title
;
 Counter-anion role in the formation of two supramolecular complexes:
 [Ag~2~(DPP)~2~](ClO~4~)~2~&#x00B7;CH~3~CN and [Ag~2~(DPP)~2~(NO~3~)~2~]
 {DPP is <i>N</i>-[(diphenylphosphanyl)methyl]pyridin-4-amine}
;
_journal_coeditor_code           FG3317
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              379
_journal_page_last               383
_journal_paper_doi               10.1107/S2053229614005725
_journal_volume                  70
_journal_year                    2014
_chemical_formula_iupac          '[Ag2 (C18 H17 N2 P)2 (N O3)2]'
_chemical_formula_moiety         'C36 H34 Ag2 N6 O6 P2'
_chemical_formula_sum            'C36 H34 Ag2 N6 O6 P2'
_chemical_formula_weight         924.37
_chemical_name_systematic
bis{\m-<i>N</i>-[(diphenylphosphanyl)methyl]pyridin-4-amine-\k^2^<i>N</i>^1^:<i>P</i>}bis[(nitrato-\k^2^<i>O</i>,<i>O</i>)silver]
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.475(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.448(5)
_cell_length_b                   17.498(6)
_cell_length_c                   16.006(5)
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.05
_cell_measurement_theta_min      2.60
_cell_volume                     3734(2)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL97 (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       \w
_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  0.0287
_diffrn_reflns_av_sigmaI/netI    0.0338
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            24006
_diffrn_reflns_theta_full        27.58
_diffrn_reflns_theta_max         27.58
_diffrn_reflns_theta_min         1.53
_exptl_absorpt_coefficient_mu    1.188
_exptl_absorpt_correction_T_max  0.8905
_exptl_absorpt_correction_T_min  0.7971
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.644
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1856
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.384
_refine_diff_density_min         -0.889
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     469
_refine_ls_number_reflns         8472
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0439
_refine_ls_R_factor_gt           0.0298
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0434P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0729
_refine_ls_wR_factor_ref         0.0805
_reflns_number_gt                6592
_reflns_number_total             8472
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fg3317sup1.cif
_cod_data_source_block           2
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2019448
_cod_database_fobs_code          2019448