Segregated assemblies in bridged electron-rich and electron-poor pi-conjugated moieties.
Benanti, Travis L; Saejueng, Pranorm; Venkataraman, D; Chemical communications (Cambridge, England)  (2007) 692–694; doi:10.1039/b610565c

data_7101700
_publ_section_title
;
 Segregated assemblies in bridged electron-rich and electron-poor
 pi-conjugated moieties.
;
_journal_issue                   7
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              692
_journal_page_last               694
_journal_paper_doi               10.1039/b610565c
_journal_year                    2007
_chemical_compound_source        'synthesis as described'
_chemical_formula_sum            'C26 H21 N O4'
_chemical_formula_weight         411.44
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2006-10-16T08:09:21-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 96.673(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
_cell_length_a                   12.140(5)
_cell_length_b                   5.718(5)
_cell_length_c                   29.183(5)
_cell_measurement_reflns_used    3593
_cell_measurement_temperature    293
_cell_measurement_theta_max      25.028
_cell_measurement_theta_min      0.998
_cell_measurement_wavelength     0.71073
_cell_volume                     2012(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Giacovazzo et al, 1997)'
_diffrn_ambient_temperature      293
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_type       'by Bruker AXS Collect from scalepack cell'
_diffrn_orient_matrix_UB_11      0.56212E-1
_diffrn_orient_matrix_UB_12      0.653863E-1
_diffrn_orient_matrix_UB_13      -0.189762E-1
_diffrn_orient_matrix_UB_21      0.609435E-1
_diffrn_orient_matrix_UB_22      -0.650786E-1
_diffrn_orient_matrix_UB_23      0.223758E-1
_diffrn_orient_matrix_UB_31      -0.19561E-2
_diffrn_orient_matrix_UB_32      -0.148568
_diffrn_orient_matrix_UB_33      -0.181531E-1
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0204
_diffrn_reflns_av_unetI/netI     0.031
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            6298
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.11
_diffrn_source                   'Enraf Nonius FR590'
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.151
_refine_diff_density_min         -0.223
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     280
_refine_ls_number_reflns         3513
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0655
_refine_ls_R_factor_gt           0.0429
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0641P)^2^+0.2006P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1065
_refine_ls_wR_factor_ref         0.1211
_reflns_number_gt                2508
_reflns_number_total             3513
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b610565c.txt
_cod_data_source_block           struct_615876
_cod_original_formula_sum        'C26 H21 N1 O4'
_cod_database_code               7101700