The inverse sandwich complex [(K(18-crown-6))(2)Cp][CpFe(CO)(2)] - unpredictable redox reactions of [CpFe(CO)(2)]I with the silanides Na[SiRtBu(2)] (R = Me, tBu) and the isoelectronic phosphanyl borohydride K[PtBu(2)BH(3)].
Sänger, Inge; Kückmann, Theresa I; Dornhaus, Franz; Bolte, Michael; Wagner, Matthias; Lerner, Hans-Wolfram; Dalton transactions (Cambridge, England : 2003) 41 (2012) 6671–6676; doi:10.1039/c2dt00031h

data_7019052
_publ_section_title
;
 The inverse sandwich complex [(K(18-crown-6))(2)Cp][CpFe(CO)(2)] -
 unpredictable redox reactions of [CpFe(CO)(2)]I with the silanides
 Na[SiRtBu(2)] (R = Me, tBu) and the isoelectronic phosphanyl borohydride
 K[PtBu(2)BH(3)].
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6671
_journal_page_last               6676
_journal_paper_doi               10.1039/c2dt00031h
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C21 H32 Fe0.5 K O7'
_chemical_formula_weight         463.49
_chemical_name_systematic        ?
_space_group_IT_number           26
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2'
_symmetry_space_group_name_H-M   'P m c 21'
_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            4
_cell_length_a                   11.4260(13)
_cell_length_b                   9.8741(8)
_cell_length_c                   21.0967(16)
_cell_measurement_reflns_used    3761
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.4
_cell_measurement_theta_min      3.6
_cell_volume                     2380.2(4)
_computing_cell_refinement       'X-Area (Stoe & Cie, 2001)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'X-Area (Stoe & Cie, 2001)'
_computing_molecular_graphics    'XP in SHELXTL-Plus (Sheldrick, 1991)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997) '
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990) '
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'STOE IPDS II two-circle-diffractometer'
_diffrn_measurement_method       \w
_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  0.0355
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            8991
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.57
_diffrn_reflns_theta_min         3.57
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.552
_exptl_absorpt_correction_T_max  0.8432
_exptl_absorpt_correction_T_min  0.8303
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'MULABS (Spek, 2003; Blessing, 1995)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.555
_refine_diff_density_min         -0.482
_refine_diff_density_rms         0.072
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.64(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         4207
_refine_ls_number_restraints     65
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0547
_refine_ls_R_factor_gt           0.0499
_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^)+(0.0874P)^2^+1.4611P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1317
_refine_ls_wR_factor_ref         0.1352
_reflns_number_gt                3860
_reflns_number_total             4207
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c2dt00031h.txt
_cod_data_source_block           wa622
_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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P mc21'
_cod_original_formula_sum        'C21 H32 Fe0.50 K O7'
_cod_database_code               7019052