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_4511487
_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            'C26 H28 Br2 Cu2 N4'
_chemical_formula_weight         683.42
_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                   12.2098(10)
_cell_length_b                   12.2098(10)
_cell_length_c                   35.803(4)
_cell_measurement_temperature    123(2)
_cell_volume                     5337.5(9)
_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      123(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_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  0.0662
_diffrn_reflns_av_sigmaI/netI    0.0900
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -43
_diffrn_reflns_number            13707
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.76
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.610
_exptl_absorpt_correction_T_max  0.5856
_exptl_absorpt_correction_T_min  0.4042
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2002)'
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.701
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2720
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.179
_refine_diff_density_min         -0.557
_refine_diff_density_rms         0.139
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     307
_refine_ls_number_reflns         5162
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0938
_refine_ls_R_factor_gt           0.0641
_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^)+(0.0765P)^2^+13.4921P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1492
_refine_ls_wR_factor_ref         0.1666
_reflns_number_gt                3806
_reflns_number_total             5162
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg060370ksi20060904_105804.cif
_cod_data_source_block           compound3
_cod_original_cell_volume        5337.5(8)
_cod_original_sg_symbol_H-M      P4(3)2(1)2
_cod_database_code               4511487