5,5'-Azoxytetrazolates - a new nitrogen-rich dianion and its comparison to 5,5'-azotetrazolate.
Fischer, Niko; Hüll, Katharina; Klapötke, Thomas M; Stierstorfer, Jörg; Laus, Gerhard; Hummel, Michael; Froschauer, Carmen; Wurst, Klaus; Schottenberger, Herwig; Dalton transactions (Cambridge, England : 2003) 41 (2012) 11201–11211; doi:10.1039/c2dt31217d

data_7020064
_publ_section_title
;
 5,5'-Azoxytetrazolates - a new nitrogen-rich dianion and its comparison
 to 5,5'-azotetrazolate.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11201
_journal_page_last               11211
_journal_paper_doi               10.1039/c2dt31217d
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C2 H10 N10 Na2 O6 '
_chemical_formula_sum            'C2 H10 N10 Na2 O6'
_chemical_formula_weight         316.18
_chemical_name_common            'disodium 5,5-azoxybistetrazolate pentahydrate'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                82.844(5)
_cell_angle_beta                 81.990(4)
_cell_angle_gamma                68.294(4)
_cell_formula_units_Z            2
_cell_length_a                   7.2189(6)
_cell_length_b                   7.6977(5)
_cell_length_c                   11.9774(9)
_cell_measurement_reflns_used    8833
_cell_measurement_temperature    233(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      1.0
_cell_volume                     610.41(8)
_computing_data_collection       COLLECT
_computing_data_reduction        'DENZO and SCALEPACK'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      233(2)
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'phi- and omega-scans'
_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  0.0202
_diffrn_reflns_av_sigmaI/netI    0.0350
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            3373
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.86
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.214
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.720
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             324
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.888
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.038(9)
_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   1.081
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         2100
_refine_ls_number_restraints     10
_refine_ls_restrained_S_all      1.079
_refine_ls_R_factor_all          0.0524
_refine_ls_R_factor_gt           0.0474
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0381P)^2^+0.6587P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1117
_refine_ls_wR_factor_ref         0.1149
_reflns_number_gt                1916
_reflns_number_total             2100
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31217d.txt
_cod_data_source_block           s245
_cod_original_sg_symbol_Hall     -P1
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7020064