Silver Binding Dichotomy for 7-Deazaadenine/Thymine: Preference for Watson-Crick Pairing over Homobase Interactions in DNA.
López-Chamorro, Carmen; Pérez-Romero, Antonio; Domínguez-Martín, Alicia; Javornik, Uroš; Palacios, Oscar; Plavec, Janez; Galindo, Miguel A; Inorganic chemistry 64 (2025) 14455–14465; doi:10.1021/acs.inorgchem.5c01762

data_3000547
_publ_section_title
;
 Silver Binding Dichotomy for 7-Deazaadenine/Thymine: Preference for
 Watson-Crick Pairing over Homobase Interactions in DNA.
;
_journal_issue                   28
_journal_name_full               'Inorganic chemistry'
_journal_page_first              14455
_journal_page_last               14465
_journal_paper_doi               10.1021/acs.inorgchem.5c01762
_journal_volume                  64
_journal_year                    2025
_chemical_formula_sum            'C18 H24 Ag N9 O3'
_chemical_formula_weight         522.33
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_cell_angle_alpha                90
_cell_angle_beta                 115.057(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.5989(8)
_cell_length_b                   9.4363(5)
_cell_length_c                   16.2993(8)
_cell_measurement_reflns_used    9864
_cell_measurement_temperature    105(2)
_cell_measurement_theta_max      28.30
_cell_measurement_theta_min      2.514
_cell_volume                     2173.4(2)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      105(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0486
_diffrn_reflns_av_unetI/netI     0.0458
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            21782
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.333
_diffrn_reflns_theta_min         2.514
_exptl_absorpt_coefficient_mu    0.967
_exptl_absorpt_correction_T_max  0.938
_exptl_absorpt_correction_T_min  0.706
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS 2014/5'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.596
_exptl_crystal_description       needle
_exptl_crystal_F_000             1064
_exptl_crystal_size_max          0.292
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.067
_refine_diff_density_max         1.481
_refine_diff_density_min         -1.501
_refine_diff_density_rms         0.164
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.489
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     282
_refine_ls_number_reflns         5363
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.489
_refine_ls_R_factor_all          0.0821
_refine_ls_R_factor_gt           0.0746
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0200P)^2^+13.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1849
_refine_ls_wR_factor_ref         0.1880
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                4661
_reflns_number_total             5363
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            2_NO3_x.cif
_cod_data_source_block           NO3_2
_cod_depositor_comments
'Releasing structure 3000547 into public domain as published material.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               3000547
_cod_database_fobs_code          3000547
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.765
_shelx_estimated_absorpt_t_max   0.938