Volatile Single-Source Precursors for the Low-Temperature Preparation of Sodium-Rare Earth Metal Fluorides.
Barry, Matthew C.; Wei, Zheng; He, Tianyu; Filatov, Alexander S.; Dikarev, Evgeny V.; Journal of the American Chemical Society 138 (2016) 8883–8887; doi:10.1021/jacs.6b04194

data_4130514
_publ_section_title
;
 Volatile Single-Source Precursors for the Low-Temperature Preparation of
 Sodium-Rare Earth Metal Fluorides.
;
_journal_issue                   28
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8883
_journal_page_last               8887
_journal_paper_doi               10.1021/jacs.6b04194
_journal_volume                  138
_journal_year                    2016
_chemical_formula_sum            'C20 H4 Er F24 Na O8'
_chemical_formula_weight         1018.48
_chemical_melting_point          ?
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/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                 125.6140(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.789(2)
_cell_length_b                   12.0958(11)
_cell_length_c                   14.096(3)
_cell_measurement_reflns_used    9488
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      33.20
_cell_measurement_theta_min      2.90
_cell_volume                     3020.2(8)
_computing_cell_refinement       'SAINT V.8.27 (Bruker AXS Inc., 2012)'
_computing_data_collection       'APEX2 v.2014.1-1 (Bruker AXS Inc., 2014)'
_computing_data_reduction        'SAINT V.8.27 (Bruker AXS Inc., 2012)'
_computing_molecular_graphics    'SHELXTL Ver. 6.14'
_computing_publication_material  'SHELXTL Ver. 6.14'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker D8 Venture PHOTON 100 CMOS'
_diffrn_measurement_method       'omega and phi 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  0.0226
_diffrn_reflns_av_sigmaI/netI    0.0147
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            39077
_diffrn_reflns_theta_full        33.20
_diffrn_reflns_theta_max         33.20
_diffrn_reflns_theta_min         3.11
_exptl_absorpt_coefficient_mu    2.986
_exptl_absorpt_correction_T_max  0.7875
_exptl_absorpt_correction_T_min  0.5569
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2012/1 (Bruker AXS Inc.)'
_exptl_crystal_colour            'light pink'
_exptl_crystal_density_diffrn    2.240
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    none
_exptl_crystal_description       needle
_exptl_crystal_F_000             1932
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.452
_refine_diff_density_min         -0.470
_refine_diff_density_rms         0.085
_refine_ls_extinction_coef       noref
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.084
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         5797
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0190
_refine_ls_R_factor_gt           0.0165
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0195P)^2^+2.9892P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0386
_refine_ls_wR_factor_ref         0.0396
_reflns_number_gt                5471
_reflns_number_total             5797
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja6b04194_si_002.cif
_cod_data_source_block           NaEr(hfac)4
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value 'not measured' was changed
to '?' -- the value is undefined or not given.

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        3020.1(7)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4130514