Menthyl-Substituted Group 4 Metallocene Dihalides
Klahn, Marcus; Arndt, Perdita; Spannenberg, Anke; Gansäuer, Andreas; Rosenthal, Uwe; Organometallics 27 (2008) 5846–; doi:10.1021/om800605x

data_4072135
_publ_section_title
;
 Menthyl-Substituted Group 4 Metallocene Dihalides
;
_journal_issue                   22
_journal_name_full               Organometallics
_journal_page_first              5846
_journal_paper_doi               10.1021/om800605x
_journal_volume                  27
_journal_year                    2008
_chemical_formula_sum            'C30 H46 Cl2 Hf'
_chemical_formula_weight         656.06
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           77
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4c'
_symmetry_space_group_name_H-M   'P 42'
_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            2
_cell_length_a                   15.3372(10)
_cell_length_b                   15.3372(10)
_cell_length_c                   6.4757(4)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    200(2)
_cell_volume                     1523.28(17)
_computing_data_collection       STOE-X-AREA
_computing_molecular_graphics    XP
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'STOE IPDS II'
_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  0.0496
_diffrn_reflns_av_sigmaI/netI    0.0366
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            21446
_diffrn_reflns_theta_full        25.96
_diffrn_reflns_theta_max         25.96
_diffrn_reflns_theta_min         2.66
_exptl_absorpt_coefficient_mu    3.615
_exptl_absorpt_correction_T_max  0.6950
_exptl_absorpt_correction_T_min  0.4864
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.430
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.343
_refine_diff_density_min         -0.203
_refine_diff_density_rms         0.041
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.007(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.829
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     150
_refine_ls_number_reflns         2975
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.829
_refine_ls_R_factor_all          0.0345
_refine_ls_R_factor_gt           0.0145
_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^)+(0.0085P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0238
_refine_ls_wR_factor_ref         0.0254
_reflns_number_gt                2000
_reflns_number_total             2975
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800605x_si_001.cif
_cod_data_source_block           ks713
_cod_original_sg_symbol_H-M      P4(2)
_cod_database_code               4072135