Robust, Alkali-Stable, Triscarbonyl Metal Derivatives of Hexametalate Anions, [M6O19{M'(CO)3}n](8-n)- (M = Nb, Ta; M' = Mn, Re; n= 1, 2)
Alexei V. Besserguenev; Michael H. Dickman; Michael T. Pope; Inorganic Chemistry 40 (2001) 2582–2586; doi:10.1021/ic001031y

data_4319656
_publ_section_title
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 Robust, Alkali-Stable, Triscarbonyl Metal Derivatives of Hexametalate
 Anions, [M6O19{M'(CO)3}n](8-n)- (M = Nb, Ta; M' = Mn, Re; n= 1, 2)
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_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2582
_journal_page_last               2586
_journal_paper_doi               10.1021/ic001031y
_journal_volume                  40
_journal_year                    2001
_chemical_formula_moiety         K6[Nb6O19{Mn(CO)3}2].12H2O
_chemical_formula_sum            'C6 H24 K6 Mn2 Nb6 O37'
_chemical_formula_weight         1590.19
_chemical_melting_point          'decomposes before melting'
_chemical_name_common
'Potassium dimanganesehexacarbonylhexaniobate'
_chemical_name_systematic
; 
 ? 
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_space_group_IT_number           12
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 112.733(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   17.812(2)
_cell_length_b                   10.0980(14)
_cell_length_c                   13.1092(18)
_cell_measurement_reflns_used    7410
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      56.552
_cell_measurement_theta_min      4.735
_cell_volume                     2174.7(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0477
_diffrn_reflns_av_sigmaI/netI    0.0376
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            12373
_diffrn_reflns_theta_full        28.26
_diffrn_reflns_theta_max         28.26
_diffrn_reflns_theta_min         2.37
_diffrn_standards_decay_%        <2%
_exptl_absorpt_coefficient_mu    2.760
_exptl_absorpt_correction_T_max  0.815
_exptl_absorpt_correction_T_min  0.622
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.428
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       triangular
_exptl_crystal_F_000             1532
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.20
_refine_diff_density_max         2.034
_refine_diff_density_min         -2.125
_refine_diff_density_rms         0.210
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     156
_refine_ls_number_reflns         2796
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0553
_refine_ls_R_factor_gt           0.0484
_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^)+(0.0750P)^2^+25.8000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1331
_refine_ls_wR_factor_ref         0.1388
_reflns_number_gt                2471
_reflns_number_total             2796
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic001031y_3.cif
_cod_data_source_block           tmn2nb6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
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_cod_database_code               4319656