Variability of (ring centroid)‒Ln‒(ring centroid) angles in the mixed ligand C5Me5/C8H8 complexes (C5Me5)Ln(C8H8) and [(C5Me5)Yb(THF)](μ-η8∶η8-C8H8)[Yb(C5Me5)]
Evans, William J.; Johnston, Matthew A.; Clark, Robert D.; Ziller, Joseph W.; Journal of the Chemical Society, Dalton Transactions  (2000) 1609–; doi:10.1039/a908412f

data_7009060
_publ_section_title
;
 Variability of (ring centroid)--Ln--(ring centroid) angles in the
 mixed ligand C5Me5/C8H8 complexes (C5Me5)Ln(C8H8) and
 [(C5Me5)Yb(THF)](\m-\h8&#x2236;\h8-C8H8)[Yb(C5Me5)]
;
_journal_issue                   10
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              1609
_journal_paper_doi               10.1039/a908412f
_journal_year                    2000
_chemical_formula_sum            'C18 H23 Sm'
_chemical_formula_weight         389.71
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4410(6)
_cell_length_b                   12.8707(8)
_cell_length_c                   11.7331(7)
_cell_measurement_temperature    158
_cell_volume                     1576.73(16)
_computing_cell_refinement       'Siemens SMART/SAINT'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens SAINT'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'Siemens SHELXTL'
_computing_structure_solution    'Siemens SHELXTL'
_diffrn_ambient_temperature      158
_diffrn_measurement_device       'Siemens Platform CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0242
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9405
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         2.35
_exptl_absorpt_coefficient_mu    3.709
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    1.642
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    none
_exptl_crystal_description       Irregular
_exptl_crystal_F_000             772
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.529
_refine_diff_density_min         -0.471
_refine_diff_density_rms         0.087
_refine_ls_extinction_coef       0.0005(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXTL
_refine_ls_goodness_of_fit_all   1.115
_refine_ls_goodness_of_fit_obs   1.213
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     139
_refine_ls_number_reflns         2003
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.115
_refine_ls_restrained_S_obs      1.213
_refine_ls_R_factor_all          0.0440
_refine_ls_R_factor_obs          0.0266
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0171P)^2^+1.7035P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0524
_refine_ls_wR_factor_obs         0.0485
_reflns_number_observed          1487
_reflns_number_total             2003
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            a908412f.txt
_cod_data_source_block           rdc9
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0171P)^2^+1.7035P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0171P)^2^+1.7035P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1576.7(2)
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               7009060