1D Tubular Chains and 3D Polycatenane Frameworks Constructed with Cu2X2Dimers (X = Br-, I-, CN-) and Flexible Dipyridyl Spacers
Hu, Sheng; Zhou, Ai-Ju; Zhang, Yue-Hua; Ding, Shu; Tong, Ming-Liang; Crystal Growth & Design 6 (2006) 2543–; doi:10.1021/cg060370k

data_4511485
_publ_section_title
;
 1D Tubular Chains and 3D Polycatenane Frameworks Constructed with
 Cu2X2Dimers (X = Br-, I-, CN-) and Flexible Dipyridyl Spacers
;
_journal_issue                   11
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2543
_journal_paper_doi               10.1021/cg060370k
_journal_volume                  6
_journal_year                    2006
_chemical_formula_sum            'C24 H24 Br2 Cu2 N4'
_chemical_formula_weight         655.37
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           96
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4nw 2abw'
_symmetry_space_group_name_H-M   'P 43 21 2'
_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            8
_cell_length_a                   16.622(3)
_cell_length_b                   16.622(3)
_cell_length_c                   17.733(6)
_cell_measurement_temperature    293(2)
_cell_volume                     4899(2)
_computing_cell_refinement       'SAINT-PLUS, Ver. 6.0, 1997'
_computing_data_collection       'SMART, 1998.'
_computing_data_reduction        'SAINT-PLUS, Ver. 6.0, 1997'
_computing_molecular_graphics    'XP, Ver. 6.10, Bruker AXS Inc., 2000'
_computing_publication_material  'SHELXTL-Bruker AXS Inc., 1998'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.939
_diffrn_measured_fraction_theta_max 0.939
_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  0.0911
_diffrn_reflns_av_sigmaI/netI    0.1245
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            14802
_diffrn_reflns_theta_full        28.34
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.68
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.017
_exptl_absorpt_correction_T_max  0.5199
_exptl_absorpt_correction_T_min  0.3145
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2002)'
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.777
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2592
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.676
_refine_diff_density_min         -0.500
_refine_diff_density_rms         0.090
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.003(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.828
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         5595
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.828
_refine_ls_R_factor_all          0.0995
_refine_ls_R_factor_gt           0.0466
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0198P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0814
_reflns_number_gt                3140
_reflns_number_total             5595
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg060370ksi20060904_105804.cif
_cod_data_source_block           compound1
_cod_original_cell_volume        4900(2)
_cod_original_sg_symbol_H-M      P4(3)2(1)2
_cod_database_code               4511485