Aromatic Expanded Isophlorins: Stable 30π Annulene Analogues with Diverse Structural Features
J. Sreedhar Reddy; Venkataramanarao G. Anand; Journal of the American Chemical Society 131 (2009) 15433–15439; doi:10.1021/ja906290d

data_4105194
_publ_contact_author_address
;
Department of Chemistry 
Indian Institute of Science Education and Research 
900 NCL Innovation Park
Dr.Homi Bhabha Road
Pune 411 008
India.
;
_publ_contact_author_email       vg.anand@iiserpune.ac.in
_publ_contact_author_fax         '091 20 25898022'
_publ_contact_author_name        'Venkataramanarao G. Anand'
_publ_contact_author_phone       '091 20 25898021'
_publ_section_title
;
 Aromatic Expanded Isophlorins: Stable 30\p Annulene Analogues with
 Diverse Structural Features
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              15433
_journal_page_last               15439
_journal_paper_doi               10.1021/ja906290d
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C70 H16 Cl12 F30 S4 Se2'
_chemical_formula_weight         2138.39
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                102.336(2)
_cell_angle_beta                 92.709(2)
_cell_angle_gamma                94.913(2)
_cell_formula_units_Z            1
_cell_length_a                   9.7879(3)
_cell_length_b                   12.8233(4)
_cell_length_c                   15.7687(6)
_cell_measurement_reflns_used    7256
_cell_measurement_temperature    248(2)
_cell_measurement_theta_max      25.2
_cell_measurement_theta_min      2.6
_cell_volume                     1922.00(11)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics    'ORTEP 32 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR92 (Altomare etal., 1993)'
_diffrn_ambient_temperature      248(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker axs (Kappa apex2)'
_diffrn_measurement_method       '\w and \f scan'
_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  0.0357
_diffrn_reflns_av_sigmaI/netI    0.0356
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            41502
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.76
_diffrn_reflns_theta_min         2.09
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    1.605
_exptl_absorpt_correction_T_max  0.8560
_exptl_absorpt_correction_T_min  0.7396
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Blessing, 1995)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.847
_exptl_crystal_description       needle
_exptl_crystal_F_000             1042
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.020
_refine_diff_density_min         -1.018
_refine_diff_density_rms         0.097
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     535
_refine_ls_number_reflns         8140
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0883
_refine_ls_R_factor_gt           0.0598
_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^)+(0.0953P)^2^+4.0445P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1631
_refine_ls_wR_factor_ref         0.1835
_reflns_number_gt                5785
_reflns_number_total             8140
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja906290d_si_009.cif
_cod_data_source_block           rrlse2s4
_cod_database_code               4105194