Proton Transfer and a Dielectric Phase Transition in the Molecular Conductor (HDABCO+)2(TCNQ)3
Tomoyuki Akutagawa; Sadamu Takeda; Tatsuo Hasegawa; Takayoshi Nakamura; Journal of the American Chemical Society 126 (2004) 291–294; doi:10.1021/ja0377697

data_4060209
_publ_section_title
;
Proton Transfer and a Dielectric Phase Transition in the Molecular  
Conductor (HDABCO+)2(TCNQ)3
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              291
_journal_page_last               294
_journal_paper_doi               10.1021/ja0377697
_journal_volume                  126
_journal_year                    2004
_chemical_formula_moiety         'C24 H19 N8'
_chemical_formula_sum            'C24 H19 N8'
_chemical_formula_weight         419.47
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                89(2)
_cell_angle_beta                 84.021(3)
_cell_angle_gamma                70.743(3)
_cell_formula_units_Z            2
_cell_length_a                   7.8153(5)
_cell_length_b                   10.1860(3)
_cell_length_c                   14.0200(7)
_cell_measurement_reflns_used    4161
_cell_measurement_temperature    100.1
_cell_measurement_theta_max      27.4
_cell_measurement_theta_min      2.6
_cell_volume                     1047.51(9)
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.9317
_diffrn_measured_fraction_theta_max 0.9317
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.034
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            8347
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.992
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
    Higashi, T. (1995). Program for Absorption Correction.
    Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.330
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             438.00
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.42
_refine_diff_density_min         -0.36
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.429
_refine_ls_hydrogen_treatment    refall
_refine_ls_number_parameters     312
_refine_ls_number_reflns         3265
_refine_ls_R_factor_gt           0.0520
_refine_ls_shift/su_max          0.0160
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
    Chebychev polynomial with 3 parameters (Carruthers & Watkin, 1979)
    17081.0000    23871.5000    7127.2400
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0420
_reflns_number_gt                3252
_reflns_number_total             4475
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_database_code               4060209