Divalent metal complexes (Ca, Sr, Ba, Yb) of the unsymmetrical 3-(2'-thienyl)-5-(trifluoromethyl)pyrazolate ligand.
Deacon, Glen B.; Junk, Peter C.; Urbatsch, Aron; Dalton transactions (Cambridge, England : 2003) 40 (2011) 1601–1609; doi:10.1039/c0dt01289k

data_7014929
_publ_section_title
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 Divalent metal complexes (Ca, Sr, Ba, Yb) of the unsymmetrical
 3-(2'-thienyl)-5-(trifluoromethyl)pyrazolate ligand.
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_journal_issue                   7
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1601
_journal_page_last               1609
_journal_paper_doi               10.1039/c0dt01289k
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C32 H40 F6 N4 O4 S2 Yb'
_chemical_formula_sum            'C32 H40 F6 N4 O4 S2 Yb'
_chemical_formula_weight         895.84
_chemical_name_common            (Yb(ttfpz)2(thf)4)
_chemical_name_systematic
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[Yb(ttfpz)2(thf)4]
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 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                   18.2265(3)
_cell_length_b                   9.9967(2)
_cell_length_c                   19.4434(4)
_cell_measurement_reflns_used    102651
_cell_measurement_temperature    123(1)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.09
_cell_volume                     3542.68(12)
_computing_cell_refinement       'Bruker SMART (Bruker)'
_computing_data_collection       'Bruker SMART (Bruker)'
_computing_data_reduction        'Bruker SAINT (Bruker)'
_computing_molecular_graphics    'X-Seed (Barbour, 1999)'
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(1)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker X8 Apex II CCD'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0339
_diffrn_reflns_av_sigmaI/netI    0.0198
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            102651
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.09
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.831
_exptl_absorpt_correction_T_max  0.6761
_exptl_absorpt_correction_T_min  0.4838
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.680
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1792
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.15
_refine_diff_density_max         2.393
_refine_diff_density_min         -0.662
_refine_diff_density_rms         0.081
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.144(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     546
_refine_ls_number_reflns         8102
_refine_ls_number_restraints     61
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0265
_refine_ls_R_factor_gt           0.0246
_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^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0583
_refine_ls_wR_factor_ref         0.0594
_reflns_number_gt                7738
_reflns_number_total             8102
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0DT01289K.TXT
_cod_data_source_block           compound1
_cod_depositor_comments
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The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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 1555 2011-01-17 13:19:09Z saulius 
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_cod_original_sg_symbol_H-M      Pca21
_cod_database_code               7014929