Synthesis and Characterization of 4,5-Dicyano-2H-1,2,3-triazole and Its Sodium, Ammonium, and Guanidinium Salts
Margaret-Jane Crawford; Konstantin Karaghiosoff; Thomas M. Klapötke; Franz A. Martin; Inorganic Chemistry 48 (2009) 1731–1743; doi:10.1021/ic801793p

data_4301455
_publ_contact_author_address
;
Department Chemie
Ludwig-Maximilians Universit\"at
Butenandtstra\&se 5-13 (Haus D)
D-81377 M\"unchen
Bundesrepublik Deutschland
;
_publ_contact_author_email       tmk@cup.uni-muenchen.de
_publ_contact_author_fax         +49-89-2180-77491
_publ_contact_author_name        'Thomas M. Klapo\"tke'
_publ_contact_author_phone       +49-89-2180-77492
_publ_section_title
;
Synthesis and Characterization of 4,5-Dicyano-2H-1,2,3-triazole and Its
Sodium, Ammonium, and Guanidinium Salts
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1731
_journal_page_last               1743
_journal_paper_doi               10.1021/ic801793p
_journal_volume                  48
_journal_year                    2009
_chemical_formula_moiety         'C H7 N4, C4 N5'
_chemical_formula_sum            'C5 H7 N9'
_chemical_formula_weight         193.20
_chemical_melting_point          108
_chemical_name_common            'Aminoguanidinium 4,5-dicyano-1,2,3-triazolate'
_chemical_name_systematic        'Aminoguanidinium 4,5-dicyano-1,2,3-triazolate'
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      7
_symmetry_space_group_name_Hall  'P -2ya'
_symmetry_space_group_name_H-M   'P 1 a 1'
_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                 105.141(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.0921(9)
_cell_length_b                   7.2893(9)
_cell_length_c                   8.8671(11)
_cell_measurement_reflns_used    1298
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      30.1
_cell_measurement_theta_min      4.3
_cell_volume                     442.48(10)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.27p5 beta (release 01-04-2005 CrysAlis171 .NET)
(compiled Apr  1 2005,17:53:34)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.27p5 beta (release 01-04-2005 CrysAlis171 .NET)
(compiled Apr  1 2005,17:53:34)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.27p5 beta (release 01-04-2005 CrysAlis171 .NET)
(compiled Apr  1 2005,17:53:34)
;
_computing_molecular_graphics
;
 ORTEP (M. N. Burnett, C. K. Johnson, ORTEP-III: Oak Ridge Thermal Ellipsoid
 Plot Program for Crystal Structure Illustrations, Oak Ridge National
 Laboratory Report ORNL-6895, 1996). Windows version (L. J. Farrugia, Univ.
 Glasgow) used --- SCHAKAL (E. Keller, University of  Freiburg (Breisgau),
 Germany, 1995)'
;
_computing_publication_material
;PLATON (A. L. Spek, Acta Crystallogr, Sect. A, 1990, 46, C34, 1995 version).
 --- T.B.Cohen, Pure Appl. Chem. 1996,68,2339-2359 (atomic masses).
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 15.9809
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       omega-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Spellman generator'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0349
_diffrn_reflns_av_sigmaI/netI    0.0237
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            5758
_diffrn_reflns_theta_full        30.06
_diffrn_reflns_theta_max         30.06
_diffrn_reflns_theta_min         4.32
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.450
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             200
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.133
_refine_diff_density_min         -0.177
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.076
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         1298
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0335
_refine_ls_R_factor_gt           0.0313
_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^)+(0.0483P)^2^+0.0211P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0779
_refine_ls_wR_factor_ref         0.0799
_reflns_number_gt                1242
_reflns_number_total             1298
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801793p_si_001_5.cif
_cod_data_source_block           ax112
_cod_original_sg_symbol_H-M      'P a'
_cod_database_code               4301455