Interchromophore orientation scaffolding by m-terphenyl oxacyclophanes.
Mangalum, Anshuman; Morgan, Brad P.; Hanley, Jessica M.; Jecen, Kristine M.; McGill, Charles J.; Robertson, Grant A.; Smith, Rhett C.; Chemical communications (Cambridge, England) 46 (2010) 5136–5138; doi:10.1039/c0cc00247j

data_7113043
_publ_section_title
;
 Interchromophore orientation scaffolding by m-terphenyl oxacyclophanes.
;
_journal_issue                   28
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              5136
_journal_page_last               5138
_journal_paper_doi               10.1039/c0cc00247j
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C26 H16 Br I3 O2'
_chemical_formula_sum            'C26 H16 Br I3 O2'
_chemical_formula_weight         821.00
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 100.12(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.6033(15)
_cell_length_b                   19.178(4)
_cell_length_c                   18.272(4)
_cell_measurement_reflns_used    7749
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      26.3590
_cell_measurement_theta_min      2.4073
_cell_volume                     2622.9(10)
_computing_cell_refinement       'CrystalClear (Rigaku/MSC,2001)'
_computing_data_collection       'CrystalClear (Rigaku/MSC,2001)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC,2001)'
_computing_molecular_graphics    'SHELXTL 6.10 (Bruker AXS,2000)'
_computing_publication_material  'SHELXTL 6.10 (Bruker AXS,2000)'
_computing_structure_refinement  'SHELXTL 6.10 (Bruker AXS,2000)'
_computing_structure_solution    'SHELXTL 6.10 (Bruker AXS,2000)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_details
;
scan:
Number of images: 260
Slice: -40.0000 - 90.0000
Image width: 0.5000
Exp time: 10.0000
Rotation axis: Omega
Omega: 0.0000
Chi: 45.0000
Phi: 0.0000
XTD: 27.6735
2theta: -0.1699
scan:
Number of images: 260
Slice: -40.0000 - 90.0000
Image width: 0.5000
Exp time: 10.0000
Rotation axis: Omega
Omega: 0.0000
Chi: 45.0000
Phi: 90.0000
XTD: 27.6735
2theta: -0.1699
;
_diffrn_measurement_device
;
Mercury CCD (2x2 bin mode)
;
_diffrn_measurement_device_details
;
AFC8: Eulerian 3 circle
;
_diffrn_measurement_method       omega
_diffrn_radiation_detector       CCD
_diffrn_radiation_monochromator  'Graphite Monochromator'
_diffrn_radiation_source         'Sealed Tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0279
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4651
_diffrn_reflns_reduction_process 'Lp corrections applied'
_diffrn_reflns_theta_full        25.10
_diffrn_reflns_theta_max         25.10
_diffrn_reflns_theta_min         2.26
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.119
_exptl_absorpt_correction_T_max  0.5440
_exptl_absorpt_correction_T_min  0.1896
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'REQAB, Rigaku/MSC, The Woodlands, TX, USA, 1999.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.079
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.12
_platon_squeeze_details
;
;
_refine_diff_density_max         0.997
_refine_diff_density_min         -0.716
_refine_diff_density_rms         0.153
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.120
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4651
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0413
_refine_ls_R_factor_gt           0.0372
_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^)+(0.0431P)^2^+10.0879P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0907
_refine_ls_wR_factor_ref         0.0937
_reflns_number_gt                4120
_reflns_number_total             4651
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc00247j.txt
_cod_data_source_block           am-1-2-i-br-oxycylcophane
_cod_original_cell_volume        2622.9(9)
_cod_database_code               7113043