Ambient Temperature Activation of Haloporphyrinic-Enediynes: Electronic Contributions to Bergman Cycloaromatization
Mahendra Nath; John C. Huffman; Jeffrey M. Zaleski; Journal of the American Chemical Society 125 (2003) 11484–11485; doi:10.1021/ja0302782

data_4114162
_publ_contact_author_name        'J. C. Huffman'
_publ_section_title
;
 Ambient Temperature Activation of Haloporphyrinic-Enediynes: Electronic
 Contributions to Bergman Cycloaromatization
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11484
_journal_page_last               11485
_journal_paper_doi               10.1021/ja0302782
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C60 H38 I2 N4 Ni'
_chemical_formula_weight         1127.45
_chemical_name_systematic
; 
  ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2bc 2ac'
_symmetry_space_group_name_H-M   'P c a b'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             08/15/2002
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.9730(7)
_cell_length_b                   19.9685(13)
_cell_length_c                   35.238(2)
_cell_measurement_reflns_used    3645
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      23.79
_cell_measurement_theta_min      2.20
_cell_volume                     9128.5(9)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1999)'
_computing_data_reduction        'SAINT (Bruker, 1999), XTEL (local package)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 44.52
_diffrn_detector_type            'Bruker SMART 6000'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_details
'   0.30 degree frames measured for  64.63 seconds each'
_diffrn_measurement_device       'three-circle goniometer with fixed chi'
_diffrn_measurement_device_type  'Bruker Platform goniometer'
_diffrn_measurement_method       '\w 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  0.0964
_diffrn_reflns_av_sigmaI/netI    0.0948
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       45
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            52235
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         2.20
_diffrn_standards_decay_%        0.0
_exptl_absorpt_coefficient_mu    1.825
_exptl_absorpt_correction_T_max  0.9820
_exptl_absorpt_correction_T_min  0.5676
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.641
_exptl_crystal_description       needle-plate
_exptl_crystal_F_000             4480
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.762
_refine_diff_density_min         -0.690
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.748
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     555
_refine_ls_number_reflns         10482
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.748
_refine_ls_R_factor_all          0.2307
_refine_ls_R_factor_gt           0.0623
_refine_ls_shift/su_max          0.041
_refine_ls_shift/su_mean         0.011
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0189P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0993
_refine_ls_wR_factor_ref         0.1321
_reflns_number_gt                3123
_reflns_number_total             10482
_reflns_threshold_expression     2sigma(I)
_cod_data_source_file            ja0302782_2.cif
_cod_data_source_block           d:\2002data\02065lb\pcab
_cod_original_cell_volume        9128.5(10)
_cod_database_code               4114162