New cyclic tetrameric and square-grid polymeric modes of supramolecular self-assembly of zinc tetra(4-pyridyl)porphyrin
Lipstman, Sophia; Goldberg, Israel; CrystEngComm 12 (2010) 52–; doi:10.1039/b914799c

data_7211796
_publ_section_title
;
 New cyclic tetrameric and square-grid polymeric modes of supramolecular
 self-assembly of zinc tetra(4-pyridyl)porphyrin
;
_journal_issue                   1
_journal_name_full               CrystEngComm
_journal_page_first              52
_journal_paper_doi               10.1039/b914799c
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C40 H24 N8 Zn'
_chemical_formula_sum            'C40 H24 N8 Zn'
_chemical_formula_weight         682.04
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 106.2023(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.8956(7)
_cell_length_b                   13.6507(5)
_cell_length_c                   14.6756(7)
_cell_measurement_reflns_used    4630
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      27.49
_cell_measurement_theta_min      1.41
_cell_volume                     4019.8(3)
_computing_cell_refinement       Denzo
_computing_data_collection       'Collect, Nonius B.V.'
_computing_data_reduction        'Denzo & Scalepack'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      110(2)
_diffrn_detector_area_resol_mean 12.8
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '1 deg. \f and \w 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  0.0920
_diffrn_reflns_av_sigmaI/netI    0.1010
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            18471
_diffrn_reflns_theta_full        27.86
_diffrn_reflns_theta_max         27.86
_diffrn_reflns_theta_min         2.48
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.646
_exptl_absorpt_correction_T_max  0.9093
_exptl_absorpt_correction_T_min  0.8552
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.127
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1400
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_platon_squeeze_details
;
;
_refine_diff_density_max         0.526
_refine_diff_density_min         -0.395
_refine_diff_density_rms         0.097
_refine_ls_extinction_coef       0.0024(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           fullcycle
_refine_ls_number_parameters     195
_refine_ls_number_reflns         4671
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.1269
_refine_ls_R_factor_gt           0.0749
_refine_ls_shift/su_max          0.034
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1114P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1935
_refine_ls_wR_factor_ref         0.2076
_reflns_number_gt                2748
_reflns_number_total             4671
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b914799c.txt
_cod_data_source_block           so119sq
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7211796