Phase transformation of a rare-earth Anderson polyoxometalate at low temperature
Zhang, Li-Zhi; Gu, Wen; Dong, Zhili; Liu, Xin; Li, Bing; CrystEngComm 10 (2008) 1318–; doi:10.1039/b808085b

data_7202244
_publ_section_title
;
 Phase transformation of a rare-earth Anderson polyoxometalate at low
 temperature
;
_journal_issue                   10
_journal_name_full               CrystEngComm
_journal_page_first              1318
_journal_paper_doi               10.1039/b808085b
_journal_volume                  10
_journal_year                    2008
_chemical_formula_moiety         'H72 Cr2 Mo12 O78 Tm2'
_chemical_formula_sum            'Cr2 H72 Mo12 O78 Tm2'
_chemical_formula_weight         2913.72
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                74.993(2)
_cell_angle_beta                 84.548(2)
_cell_angle_gamma                89.545(2)
_cell_formula_units_Z            1
_cell_length_a                   11.0989(13)
_cell_length_b                   11.7203(14)
_cell_length_c                   13.9843(16)
_cell_measurement_reflns_used    6096
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      26.42
_cell_measurement_theta_min      2.55
_cell_volume                     1748.9(4)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      294(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0394
_diffrn_reflns_av_sigmaI/netI    0.0696
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9902
_diffrn_reflns_theta_full        26.42
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         1.80
_exptl_absorpt_coefficient_mu    5.006
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.419073
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    2.767
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1386
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         3.106
_refine_diff_density_min         -2.792
_refine_diff_density_rms         0.297
_refine_ls_extinction_coef       0.0061(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     455
_refine_ls_number_reflns         7051
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0539
_refine_ls_R_factor_gt           0.0476
_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^)+(0.0869P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1293
_refine_ls_wR_factor_ref         0.1339
_reflns_number_gt                6097
_reflns_number_total             7051
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b808085b.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_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.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed to
'constr' 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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'NONE' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'H72 Cr2 Mo12 O78 Tm2'
_cod_database_code               7202244