A Conformationally Persistent Pseudo-bicyclic Guanidinium for Anion Coordination As Stabilized by Dual Intramolecular Hydrogen Bonds
Seipp, Charles Aaron; Williams, Neil J.; Bryantsev, Vyacheslav; Custelcean, Radu; Moyer, Bruce A.; RSC Adv.  (2015) –; doi:10.1039/C5RA21864K

data_7223377
_publ_section_title
;
 A Conformationally Persistent Pseudo-bicyclic Guanidinium for Anion
 Coordination As Stabilized by Dual Intramolecular Hydrogen Bonds
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA21864K
_journal_year                    2015
_chemical_formula_sum            'C11 H12 N6 O3'
_chemical_formula_weight         276.27
_chemical_name_systematic        'N,N'-bis(2-pyridyl)guanidinium nitrate'
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-06-03 deposited with the CCDC.
2015-11-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 110.838(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.5823(17)
_cell_length_b                   13.2072(17)
_cell_length_c                   8.6438(12)
_cell_measurement_temperature    173(2)
_cell_volume                     1235.8(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0206
_diffrn_reflns_av_sigmaI/netI    0.0227
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            7687
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.43
_exptl_absorpt_coefficient_mu    0.113
_exptl_absorpt_correction_T_max  0.9745
_exptl_absorpt_correction_T_min  0.9562
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.485
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             576
_exptl_crystal_recrystallization_method
'Slow diffusion of diethyl ether into methanol'
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.252
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         3053
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0389
_refine_ls_R_factor_gt           0.0369
_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^)+(0.0574P)^2^+0.2195P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0936
_refine_ls_wR_factor_ref         0.0954
_reflns_number_gt                2908
_reflns_number_total             3053
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra21864k2.cif
_cod_data_source_block           c:\frames\644\work\cc
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7223377