A Photochemical Metallocene Route to Anionic Enediynes: Synthesis, Solid-State Structures, and ab Initio Computations on Cyclopentadienidoenediynes
Joseph M. O'Connor; Kim K. Baldridge; Betsy L. Rodgers; Marissa Aubrey; Ryan L. Holland; W. Scott Kassel; Arnold L. Rheingold; Journal of the American Chemical Society 132 (2010) 11030–11032; doi:10.1021/ja105149k

data_4102851
_publ_section_title
;
 A Photochemical Metallocene Route to Anionic Enediynes: Synthesis,
 Solid-State Structures, and ab Initio Computations on
 Cyclopentadienidoenediynes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11030
_journal_page_last               11032
_journal_paper_doi               10.1021/ja105149k
_journal_volume                  132
_journal_year                    2010
_chemical_formula_moiety         'C18 H14 Fe O4'
_chemical_formula_sum            'C18 H14 Fe O4'
_chemical_formula_weight         350.14
_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                100.7700(10)
_cell_angle_beta                 103.0400(10)
_cell_angle_gamma                94.4800(10)
_cell_formula_units_Z            4
_cell_length_a                   10.2259(6)
_cell_length_b                   11.7586(7)
_cell_length_c                   13.5232(8)
_cell_measurement_reflns_used    9451
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.27
_cell_volume                     1543.89(16)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device_type  'ccD area detector'
_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  0.0163
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13557
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         1.58
_exptl_absorpt_coefficient_mu    0.994
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.874
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.506
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.443
_refine_diff_density_min         -0.280
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     527
_refine_ls_number_reflns         6763
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0349
_refine_ls_R_factor_gt           0.0306
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0417P)^2^+0.6773P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0759
_refine_ls_wR_factor_ref         0.0786
_reflns_number_gt                6070
_reflns_number_total             6763
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja105149k_si_004.cif
_cod_data_source_block           betsy2
_cod_database_code               4102851