Anion dependent silver(i) complexes of pyrazine mono-N-oxide
Puttreddy, Rakesh; Cottam, Justine R. A.; Steel, Peter J.; RSC Adv. 4 (2014) 22449–; doi:10.1039/C4RA01336K

data_7235542
_publ_section_title
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 Anion dependent silver(i) complexes of pyrazine mono-N-oxide
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_journal_issue                   43
_journal_name_full               'RSC Adv.'
_journal_page_first              22449
_journal_paper_doi               10.1039/C4RA01336K
_journal_volume                  4
_journal_year                    2014
_chemical_formula_moiety         '2(C4 H4 Ag0.5 N2 O), B F4'
_chemical_formula_sum            'C8 H8 Ag B F4 N4 O2'
_chemical_formula_weight         386.86
_chemical_name_common            3
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2013-12-23
_audit_creation_method
;
Olex2 1.2
(compiled 2013.12.10 svn.r2850 for OlexSys, GUI svn.r4736)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 97.643(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.88685(15)
_cell_length_b                   15.4949(3)
_cell_length_c                   15.4356(3)
_cell_measurement_temperature    120(2)
_cell_volume                     1158.42(5)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120.0
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0240
_diffrn_reflns_av_unetI/netI     0.0127
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            18970
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.66
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.800
_exptl_absorpt_correction_T_max  0.7997
_exptl_absorpt_correction_T_min  0.7147
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.218
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.020
_refine_diff_density_min         -1.195
_refine_diff_density_rms         0.141
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.270
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         2663
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.270
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0457
_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^+12.4440P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1089
_refine_ls_wR_factor_ref         0.1092
_reflns_number_gt                2580
_reflns_number_total             2663
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra01336k1.cif
_cod_data_source_block           3rpu203
_cod_database_code               7235542
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C5(H5), C6(H6), C7(H7), C8(H8)
;