Spin-state control of thermal and photochemical Bergman cyclization
Leigh J. K. Boerner; Maren Pink; Hyunsoo Park; Amanda LeSueur; Jeffrey M. Zaleski; Chemical communications (Cambridge, England) 49 (2013) 2145–2147; doi:10.1039/c3cc34471a

data_7108940
_publ_section_title
;
 Spin-state control of thermal and photochemical Bergman cyclization
;
_journal_issue                   21
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2145
_journal_page_last               2147
_journal_paper_doi               10.1039/c3cc34471a
_journal_volume                  49
_journal_year                    2013
_chemical_formula_moiety         'C48 H26 N4 Pt'
_chemical_formula_sum            'C48 H26 N4 Pt'
_chemical_formula_weight         853.82
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      33
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2411(10)
_cell_length_b                   21.366(3)
_cell_length_c                   20.202(2)
_cell_measurement_reflns_used    1289
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.27
_cell_measurement_theta_min      2.02
_cell_volume                     3125.5(7)
_computing_cell_refinement       'Bruker APEX II (2009)'
_computing_data_collection       'Bruker APEX II (2009)'
_computing_data_reduction        'Bruker APEX II (2009)'
_computing_molecular_graphics    'Diamond 3.2d (2010)'
_computing_publication_material  'WinGX (2005)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 83.33
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  kappa
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0744
_diffrn_reflns_av_sigmaI/netI    0.0934
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            18126
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         2.02
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'Bruker APEX II'
_exptl_absorpt_coefficient_mu    4.536
_exptl_absorpt_correction_T_max  0.8049
_exptl_absorpt_correction_T_min  0.7419
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (R. Blessing, 1995)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.814
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1680
_exptl_crystal_size_max          0.07
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.349
_refine_diff_density_min         -1.221
_refine_diff_density_rms         0.151
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.000(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.942
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     455
_refine_ls_number_reflns         6443
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.942
_refine_ls_R_factor_all          0.0695
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0626
_refine_ls_wR_factor_ref         0.0710
_reflns_number_gt                4692
_reflns_number_total             6443
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3cc34471a.txt
_cod_data_source_block           new
_cod_database_code               7108940