New Polar Phases of 1,4-Diazabicyclo[2.2.2]octane Perchlorate, An NH+···N Hydrogen-Bonded Ferroelectric
Olejniczak, Anna; Anioła, Michalina; Szafrański, Marek; Budzianowski, Armand; Katrusiak, Andrzej; Crystal Growth & Design 13 (2013) 2872–; doi:10.1021/cg400276c

data_4510703
_publ_section_title
;
 New Polar Phases of 1,4-Diazabicyclo[2.2.2]octane Perchlorate, An
 NH+&#x00B7;&#x00B7;&#x00B7;N Hydrogen-Bonded Ferroelectric
;
_journal_issue                   7
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2872
_journal_paper_doi               10.1021/cg400276c
_journal_volume                  13
_journal_year                    2013
_chemical_formula_moiety         'C6 H13 N2, Cl O4'
_chemical_formula_sum            'C6 H13 Cl N2 O4'
_chemical_formula_weight         212.63
_chemical_name_common
;
dabcoHClO4
;
_chemical_name_systematic
; 
1,4-diazabicyclo[2.2.2]octane perchlorate
;
_space_group_IT_number           31
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P -2ab -2'
_symmetry_space_group_name_H-M   'P m 21 n'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.8740(9)
_cell_length_b                   9.7570(13)
_cell_length_c                   5.3488(6)
_cell_measurement_reflns_used    2854
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      29.16
_cell_measurement_theta_min      3.81
_cell_volume                     463.12(9)
_computing_cell_refinement       'CrysAlis (Oxford Diffraction, 2002)'
_computing_data_collection       'CrysAlis (Oxford Diffraction, 2002)'
_computing_data_reduction        'CrysAlis (Oxford Diffraction, 2002)'
_computing_molecular_graphics
;X-Seed (Barbour, 2001) 
and POV-Ray (Persistence of Vision, 2004)
;
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.943
_diffrn_measured_fraction_theta_max 0.943
_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  0.0282
_diffrn_reflns_av_sigmaI/netI    0.0153
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            2854
_diffrn_reflns_theta_full        29.16
_diffrn_reflns_theta_max         29.16
_diffrn_reflns_theta_min         3.81
_exptl_absorpt_coefficient_mu    0.399
_exptl_absorpt_correction_T_max  0.95
_exptl_absorpt_correction_T_min  0.90
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
; 
Correction for absorption was made using XEMP (SHELXTL, 
Sheldrick (1990)).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.525
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             224
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.317
_refine_diff_density_min         -0.226
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(11)
_refine_ls_extinction_coef       0.032(7)
_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   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     71
_refine_ls_number_reflns         1213
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0366
_refine_ls_R_factor_gt           0.0361
_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^)+(0.0658P)^2^+0.0825P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1011
_refine_ls_wR_factor_ref         0.1017
_reflns_number_gt                1193
_reflns_number_total             1213
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg400276c_si_002.cif
_cod_data_source_block           dabcoHClO4_II_295K
_cod_original_sg_symbol_H-M      Pm21n
_cod_database_code               4510703