Conjugated metallorganic macrocycles: opportunities for coordination-driven planarization of bidentate, pyridine-based ligands.
Hamm, Danielle C.; Braun, Lindsey A.; Burazin, Alex N.; Gauthier, Amanda M.; Ness, Kendra O.; Biebel, Casey E.; Sauer, Jon S.; Tanke, Robin; Noll, Bruce C.; Bosch, Eric; Bowling, Nathan P.; Dalton transactions (Cambridge, England : 2003) 42 (2013) 948–958; doi:10.1039/c2dt31914d

data_7020760
_publ_section_title
;
 Conjugated metallorganic macrocycles: opportunities for
 coordination-driven planarization of bidentate, pyridine-based ligands.
;
_journal_issue                   4
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              948
_journal_page_last               958
_journal_paper_doi               10.1039/c2dt31914d
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C28 H16 N2'
_chemical_formula_sum            'C28 H16 N2'
_chemical_formula_weight         380.43
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2012-07-16 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 117.4760(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.7773(14)
_cell_length_b                   14.4079(15)
_cell_length_c                   12.3216(13)
_cell_measurement_reflns_used    2381
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      23.08
_cell_measurement_theta_min      2.34
_cell_volume                     2012.5(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    '(Barbour, 2001)'
_computing_publication_material  '(Barbour, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_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  0.0575
_diffrn_reflns_av_sigmaI/netI    0.0468
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            23414
_diffrn_reflns_theta_full        27.21
_diffrn_reflns_theta_max         27.21
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.9905
_exptl_absorpt_correction_T_min  0.9796
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.256
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.161
_refine_diff_density_min         -0.178
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.005
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         4482
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.005
_refine_ls_R_factor_all          0.0884
_refine_ls_R_factor_gt           0.0450
_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^)+(0.0446P)^2^+0.3209P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0938
_refine_ls_wR_factor_ref         0.1148
_reflns_number_gt                2849
_reflns_number_total             4482
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt31914d.txt
_cod_data_source_block           eb222
_cod_original_sg_symbol_H-M      'P21/c '
_cod_database_code               7020760