Isolation of reactive Ln(ii) complexes with C<sub>5</sub>H<sub>4</sub>Me ligands (Cp<sup>Me</sup>) using inverse sandwich countercations: synthesis and structure of [(18-crown-6)K(μ-Cp<sup>Me</sup>)K(18-crown-6)][Cp<sup>Me</sup><sub>3</sub>Ln<sup>II</sup>] (Ln = Tb, Ho).
Huh, Daniel N.; Ziller, Joseph W.; Evans, William J.; Dalton transactions (Cambridge, England : 2003) 47 (2018) 17285–17290; doi:10.1039/c8dt03890b

data_7048076
_publ_section_title
;
 Isolation of reactive Ln(ii) complexes with C<sub>5</sub>H<sub>4</sub>Me
 ligands (Cp<sup>Me</sup>) using inverse sandwich countercations:
 synthesis and structure of
 [(18-crown-6)K(\m-Cp<sup>Me</sup>)K(18-crown-6)][Cp<sup>Me</sup><sub>3</sub>Ln<sup>II</sup>]
 (Ln = Tb, Ho).
;
_journal_issue                   48
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              17285
_journal_page_last               17290
_journal_paper_doi               10.1039/c8dt03890b
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C60 H100 K2 O15 Tb'
_chemical_formula_weight         1298.51
_chemical_properties_physical    Air-sensitive,Moisture-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-09-27 deposited with the CCDC.
2018-11-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90.774(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.593(3)
_cell_length_b                   26.141(9)
_cell_length_c                   25.231(8)
_cell_measurement_reflns_used    9866
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      27.59
_cell_measurement_theta_min      2.26
_cell_volume                     6327(4)
_computing_cell_refinement       'Bruker SAINT 8.34a, 2013'
_computing_data_collection       'Bruker APEX2 2014.11-0, 2014'
_computing_data_reduction        'Bruker SAINT 8.34a, 2013'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'Bruker SHELXTL 2014/4'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0476
_diffrn_reflns_av_unetI/netI     0.0379
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            68430
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.500
_diffrn_reflns_theta_max         26.372
_diffrn_reflns_theta_min         1.122
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.311
_exptl_absorpt_correction_T_max  0.7458
_exptl_absorpt_correction_T_min  0.6436
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS 2014/5'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    not_measured
_exptl_crystal_description       prism
_exptl_crystal_F_000             2732
_exptl_crystal_size_max          0.335
_exptl_crystal_size_mid          0.136
_exptl_crystal_size_min          0.100
_refine_diff_density_max         2.429
_refine_diff_density_min         -0.886
_refine_diff_density_rms         0.096
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     680
_refine_ls_number_reflns         12924
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0389
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0394P)^2^+14.0844P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0886
_refine_ls_wR_factor_ref         0.0959
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10335
_reflns_number_total             12924
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt03890b2.cif
_cod_data_source_block           dnh53
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7048075--7048076.cif.
;
_cod_original_cell_volume        6326(4)
_cod_database_code               7048076
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.668
_shelx_estimated_absorpt_t_max   0.880
_exptl_absorpt_special_details
; 
Reflections not merged 
76422 Corrected reflections written to file dnh53s.hkl 
Estimated minimum and maximum transmission:  0.6436  0.7458 
The ratio (0.8630) of these values is more reliable than their absolute values 
Additional spherical absorption correction applied with mu*r =  0.2000 
Lambda/2 correction factor = 0.00150 
;
_shelx_res_checksum              37223