Syntheses, structure, and properties of a manganese-calcium cluster containing a Mn4Ca2 core.
Jerzykiewicz, Lucjan B.; Utko, Józef; Duczmal, Marek; Sobota, Piotr; Dalton transactions (Cambridge, England : 2003)  (2007) 825–826; doi:10.1039/b613320g

data_7004901
_publ_section_title
;
 Syntheses, structure, and properties of a manganese-calcium cluster
 containing a Mn4Ca2 core.
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              825
_journal_page_last               826
_journal_paper_doi               10.1039/b613320g
_journal_year                    2007
_chemical_formula_moiety         'C20 H52 Cl4 Mn4 O12'
_chemical_formula_sum            'C20 H52 Cl4 Mn4 O12'
_chemical_formula_weight         846.18
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.24(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.977(3)
_cell_length_b                   12.362(3)
_cell_length_c                   23.523(3)
_cell_measurement_reflns_used    9164
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      3
_cell_volume                     3772.7(14)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.13
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.13
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.13
;
_computing_molecular_graphics    'SHELXTL-NT V5.1, Bruker AXS 1999'
_computing_publication_material  'SHELXTL-NT V5.1, Bruker AXS 1999'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Kuma KM4CCD kappa-axis 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  0.0420
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            46132
_diffrn_reflns_theta_full        28.06
_diffrn_reflns_theta_max         28.06
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    1.637
_exptl_absorpt_correction_T_max  0.746
_exptl_absorpt_correction_T_min  0.579
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.13 beta
Analytical numeric absorption correction using a multifaceted crystal
model based on expressions derived by R.C. Clark & J.S. Reid.
;
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.490
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.225
_exptl_crystal_size_mid          0.171
_exptl_crystal_size_min          0.096
_refine_diff_density_max         0.702
_refine_diff_density_min         -0.338
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     385
_refine_ls_number_reflns         9145
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0507
_refine_ls_R_factor_gt           0.0370
_refine_ls_shift/su_max          0.028
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0308P)^2^+3.2416P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0727
_refine_ls_wR_factor_ref         0.0769
_reflns_number_gt                7639
_reflns_number_total             9145
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b613320g.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7004901