Ferroelectric metal-organic framework with a high dielectric constant.
Ye, Qiong; Song, Yu-Mei; Wang, Guo-Xi; Chen, Kai; Fu, Da-Wei; Chan, Philip Wai Hong; Zhu, Jin-Song; Huang, Songping D; Xiong, Ren-Gen; Journal of the American Chemical Society 128 (2006) 6554–6555; doi:10.1021/ja060856p

data_4101269
_publ_section_title
;
 Ferroelectric metal-organic framework with a high dielectric constant.
;
_journal_issue                   20
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6554
_journal_page_last               6555
_journal_paper_doi               10.1021/ja060856p
_journal_volume                  128
_journal_year                    2006
_chemical_formula_sum            'C13 H14 Cd Cl N5 O2'
_chemical_formula_weight         420.14
_chemical_name_systematic
; 
 ? 
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 115.028(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.0860(17)
_cell_length_b                   24.088(4)
_cell_length_c                   7.7691(14)
_cell_measurement_reflns_used    1754
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      26.22
_cell_measurement_theta_min      2.61
_cell_volume                     1540.7(5)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker Smart Apex CCD area detector'
_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  0.0439
_diffrn_reflns_av_sigmaI/netI    0.0504
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            5434
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.69
_exptl_absorpt_coefficient_mu    1.604
_exptl_absorpt_correction_T_max  0.69
_exptl_absorpt_correction_T_min  0.62
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker(2000)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.811
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.503
_refine_diff_density_min         -1.502
_refine_diff_density_rms         0.126
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.10(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2940
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0554
_refine_ls_R_factor_gt           0.0515
_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^)+(0.0900P)^2^+1.9900P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1268
_refine_ls_wR_factor_ref         0.1282
_reflns_number_gt                2721
_reflns_number_total             2940
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja060856psi20060210_011454.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               4101269