Temperature induced valence phase transition in intermediate-valent YbPd2Al3
Stegemann, Frank; Stahl, Juliane; Bartsch, Manfred; Zacharias, Helmut; Johrendt, Dirk; Janka, Oliver; Chemical Science  (2019) –; doi:10.1039/C9SC04437J

data_1552521
_publ_section_title
;
 Temperature induced valence phase transition in intermediate-valent
 YbPd2Al3
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C9SC04437J
_journal_year                    2019
_chemical_formula_sum            'Al3 Ca Pd2'
_chemical_formula_weight         333.8
_space_group_IT_number           191
_space_group_name_Hall           '-P 6 2'
_space_group_name_H-M_alt        'P 6/m m m'
_symmetry_cell_setting           hexagonal
_symmetry_Int_Tables_number      191
_symmetry_space_group_name_Hall  '-P 6 2'
_symmetry_space_group_name_H-M   'P 6/m m m'
_audit_update_record
;
2019-04-17 deposited with the CCDC.    2019-10-14 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   9.3628(6)
_cell_length_b                   9.3628(3)
_cell_length_c                   4.2396
_cell_measurement_reflns_used    7006
_cell_measurement_temperature    293
_cell_measurement_theta_max      33.52
_cell_measurement_theta_min      2.51
_cell_volume                     321.86(2)
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'IPDS Stoe'
_diffrn_measurement_method       '??integration method??'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.022
_diffrn_reflns_av_unetI/netI     0.0038
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            5818
_diffrn_reflns_theta_full        33.31
_diffrn_reflns_theta_max         33.31
_diffrn_reflns_theta_min         2.51
_exptl_absorpt_coefficient_mu    10.0
_exptl_absorpt_correction_T_max  0.8119
_exptl_absorpt_correction_T_min  0.6748
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            silver
_exptl_crystal_density_diffrn    5.17
_exptl_crystal_description       block
_exptl_crystal_F_000             453
_exptl_crystal_size_max          0.040
_exptl_crystal_size_mid          0.035
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.45
_refine_diff_density_min         -0.41
_refine_ls_extinction_coef       750(30)
_refine_ls_extinction_method
'B-C type 1 Lorentzian isotropic (Becker & Coppens, 1974)'
_refine_ls_goodness_of_fit_gt    0.83
_refine_ls_goodness_of_fit_ref   0.84
_refine_ls_number_constraints    0
_refine_ls_number_parameters     17
_refine_ls_number_reflns         288
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0098
_refine_ls_R_factor_gt           0.0069
_refine_ls_shift/su_max          0.0007
_refine_ls_shift/su_mean         0.0001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/(\s^2^(I)+0.0004I^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0186
_refine_ls_wR_factor_ref         0.0200
_reflns_number_gt                258
_reflns_number_total             288
_reflns_threshold_expression     I>3\s(I)
_cod_data_source_file            c9sc04437j2.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_diffrn_radiation_probe' value 'X-ray' changed to 'x-ray' according
to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_sg_symbol_Hall     '-P 6;-2'
_cod_original_formula_sum        'Al3 Ca1 Pd2'
_cod_database_code               1552521