An unprecedented all helical 3D network and a rarely observed non-interpenetrated octahedral network in homochiral Cu(II) MOFs: effect of steric bulk and π‒π stacking interactions of the ligand backbone
Banerjee, Subhabrata; Adarsh, N. N.; Dastidar, Parthasarathi; CrystEngComm 11 (2009) 746–; doi:10.1039/b820087b

data_7200679
_publ_section_title
;
 An unprecedented all helical 3D network and a rarely observed
 non-interpenetrated octahedral network in homochiral Cu(II) MOFs:
 effect of steric bulk and \p--\p stacking interactions of the ligand
 backbone
;
_journal_issue                   5
_journal_name_full               CrystEngComm
_journal_page_first              746
_journal_paper_doi               10.1039/b820087b
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C28 H28 Cl Cu N8 O4'
_chemical_formula_weight         639.57
_chemical_name_systematic
;
?
;
_space_group_IT_number           75
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4'
_symmetry_space_group_name_H-M   'P 4'
_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            1
_cell_length_a                   13.266(4)
_cell_length_b                   13.266(4)
_cell_length_c                   5.3885(17)
_cell_measurement_temperature    100(2)
_cell_volume                     948.3(5)
_computing_cell_refinement       'BRUKER AXS SMART 3'
_computing_data_collection       'BRUKER AXS SMART 3'
_computing_data_reduction        'BRUKER AXS SAINT'
_computing_molecular_graphics    'BRUKER SHELXTL'
_computing_publication_material  MERCURY1.4.2
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'BRUKER CCD AREA DETECTOR'
_diffrn_measurement_method       'OMEGA SCAN'
_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  0.0543
_diffrn_reflns_av_sigmaI/netI    0.0424
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            7648
_diffrn_reflns_theta_full        23.26
_diffrn_reflns_theta_max         23.26
_diffrn_reflns_theta_min         1.54
_exptl_absorpt_coefficient_mu    0.684
_exptl_absorpt_correction_T_max  0.9601
_exptl_absorpt_correction_T_min  0.8754
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            BLUE
_exptl_crystal_density_diffrn    1.120
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       NEEDLE
_exptl_crystal_F_000             330
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.964
_refine_diff_density_min         -1.045
_refine_diff_density_rms         0.127
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.03(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.104
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     86
_refine_ls_number_reflns         1333
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0896
_refine_ls_R_factor_gt           0.0869
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1314P)^2^+5.3102P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2310
_refine_ls_wR_factor_ref         0.2339
_reflns_number_gt                1276
_reflns_number_total             1333
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b820087b.txt
_cod_data_source_block           sb0387c
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'TETRAGONAL' changed to 'tetragonal'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P4
_cod_database_code               7200679