Strain-Controlled, Photochemically, or Thermally Promoted Haptotropic Shifts of Cyclopentadienyl Ligands in Group 8 Metallocenophanes
David E. Herbert; Makoto Tanabe; Sara C. Bourke; Alan J. Lough; Ian Manners; Journal of the American Chemical Society 130 (2008) 4166–4176; doi:10.1021/ja077334+

data_4111369
_publ_section_title
;
 Strain-Controlled, Photochemically, or Thermally Promoted Haptotropic
 Shifts of Cyclopentadienyl Ligands in Group 8 Metallocenophanes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4166
_journal_page_last               4176
_journal_paper_doi               10.1021/ja077334+
_journal_volume                  130
_journal_year                    2008
_chemical_formula_moiety         'C18 H28 P2 Ru'
_chemical_formula_sum            'C18 H28 P2 Ru'
_chemical_formula_weight         407.41
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 100.619(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.1075(3)
_cell_length_b                   13.7698(5)
_cell_length_c                   16.3172(4)
_cell_measurement_reflns_used    13073
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.4
_cell_measurement_theta_min      2.6
_cell_volume                     1790.43(10)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2003)'
_computing_data_reduction        Denzo-SMN
_computing_molecular_graphics    'SHELXTL V6.12'
_computing_publication_material  'SHELXTL V6.12'
_computing_structure_refinement  'SHELXTL V6.12(Sheldrick, 2001)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1993)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.962
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_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  0.0582
_diffrn_reflns_av_sigmaI/netI    0.0459
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            13073
_diffrn_reflns_theta_full        27.42
_diffrn_reflns_theta_max         27.42
_diffrn_reflns_theta_min         2.56
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.047
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.910
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.511
_exptl_crystal_description       plate
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.820
_refine_diff_density_min         -1.477
_refine_diff_density_rms         0.134
_refine_ls_extinction_coef       0.0032(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.077
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     199
_refine_ls_number_reflns         3936
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.077
_refine_ls_R_factor_all          0.0472
_refine_ls_R_factor_gt           0.0367
_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^)+(0.0580P)^2^+0.4322P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1005
_reflns_number_gt                3318
_reflns_number_total             3936
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja077334-file007.cif
_cod_data_source_block           k05117
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4111369