Switching high two-photon efficiency: from 3,8,13-substituted triindole derivatives to their 2,7,12-isomers.
Ji, Lei; Fang, Qi; Yuan, Mao-Sen; Liu, Zhi-Qiang; Shen, Yu-Xiang; Chen, Hong-Feng; Organic letters 12 (2010) 5192–5195; doi:10.1021/ol102057t

data_1503450
_publ_section_title
;
 Switching high two-photon efficiency: from 3,8,13-substituted triindole
 derivatives to their 2,7,12-isomers.
;
_journal_issue                   22
_journal_name_full               'Organic letters'
_journal_page_first              5192
_journal_page_last               5195
_journal_paper_doi               10.1021/ol102057t
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C90 H102 N6 Si6'
_chemical_formula_sum            'C90 H102 N6 Si6'
_chemical_formula_weight         1436.32
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           148
_symmetry_cell_setting           rhombohedral
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            6
_cell_length_a                   29.1610(4)
_cell_length_b                   29.1610(4)
_cell_length_c                   17.6054(3)
_cell_measurement_reflns_used    5755
_cell_measurement_temperature    135(2)
_cell_measurement_theta_max      21.12
_cell_measurement_theta_min      2.42
_cell_volume                     12965.3(3)
_computing_cell_refinement       'APEX2 Software Suite (Bruker,2005)'
_computing_data_collection       'APEX2 Software Suite (Bruker,2005)'
_computing_data_reduction        'APEX2 Software Suite (Bruker,2005)'
_computing_molecular_graphics    'SHELXTL97 (Sheldrick, 2008)'
_computing_publication_material  'WINGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      135(2)
_diffrn_detector_area_resol_mean 10.0
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type
'Bruker APEX2 CCD area-detector diffractometer'
_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  0.0477
_diffrn_reflns_av_sigmaI/netI    0.0349
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       37
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            38913
_diffrn_reflns_theta_full        27.51
_diffrn_reflns_theta_max         27.51
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_T_max  0.9801
_exptl_absorpt_correction_T_min  0.9746
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'APEX2 Software Suite (Bruker, 2005)'
_exptl_crystal_colour            clear
_exptl_crystal_density_diffrn    1.104
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       parallelpiped
_exptl_crystal_F_000             4608
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.307
_refine_diff_density_min         -0.487
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     mixed
_refine_ls_goodness_of_fit_ref   0.945
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     402
_refine_ls_number_reflns         6579
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      0.945
_refine_ls_R_factor_all          0.1038
_refine_ls_R_factor_gt           0.0582
_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^)+(0.0838P)^2^+19.0008P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1458
_refine_ls_wR_factor_ref         0.1769
_reflns_number_gt                3929
_reflns_number_total             6579
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol102057t_si_003.cif
_cod_data_source_block           fq51
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Rhombohedral' changed to
'rhombohedral' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               1503450