Self-assembled cyclic boron-dipyrrin oligomers
Ikeda, Chusaku; Nabeshima, Tatsuya; Chemical Communications (Cambridge, United Kingdom)  (2008) 721–723; doi:10.1039/b716453j

data_7102879
_publ_section_title
;
 Self-assembled cyclic boron-dipyrrin oligomers
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   6
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              721
_journal_page_last               723
_journal_paper_doi               10.1039/b716453j
_journal_year                    2008
_chemical_formula_moiety         'C81 H51 B3 N6 O6, 2(C2 H3 N), 2(C H Cl3)'
_chemical_formula_sum            'C87 H59 B3 Cl6 N8 O6'
_chemical_formula_weight         1557.55
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                 90.068(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.025(3)
_cell_length_b                   23.337(6)
_cell_length_c                   22.624(5)
_cell_measurement_temperature    120(2)
_cell_volume                     7405(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'MAC Science DIP-2030'
_diffrn_measurement_method       IP
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0315
_diffrn_reflns_av_sigmaI/netI    0.0402
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            36155
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    0.296
_exptl_absorpt_correction_T_max  0.9432
_exptl_absorpt_correction_T_min  0.8908
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   scalepack
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.397
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             3208
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         2.615
_refine_diff_density_min         -0.523
_refine_diff_density_rms         0.082
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.03(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     993
_refine_ls_number_reflns         15623
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0697
_refine_ls_R_factor_gt           0.0621
_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^)+(0.1144P)^2^+7.6833P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1648
_refine_ls_wR_factor_ref         0.1740
_reflns_number_gt                13792
_reflns_number_total             15623
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b716453j.txt
_cod_data_source_block           3mer
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7102879