Na-Ni-H Phase Formation at High Pressures and High Temperatures: Hydrido Complexes [NiH<sub>5</sub>]<sup>3-</sup><i>Versus</i> the Perovskite NaNiH<sub>3</sub>.
Spektor, Kristina; Crichton, Wilson A.; Filippov, Stanislav; Klarbring, Johan; Simak, Sergei I.; Fischer, Andreas; Häussermann, Ulrich; ACS omega 5 (2020) 8730–8743; doi:10.1021/acsomega.0c00239

data_4517557
_publ_section_title
;
 Na-Ni-H Phase Formation at High Pressures and High Temperatures: Hydrido
 Complexes [NiH<sub>5</sub>]<sup>3-</sup><i>Versus</i> the Perovskite
 NaNiH<sub>3</sub>.
;
_journal_issue                   15
_journal_name_full               'ACS omega'
_journal_page_first              8730
_journal_page_last               8743
_journal_paper_doi               10.1021/acsomega.0c00239
_journal_volume                  5
_journal_year                    2020
_chemical_formula_sum            'H5 Na3 Ni'
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_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      62
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.4131(9)
_cell_length_b                   7.3711(6)
_cell_length_c                   5.4291(5)
_cell_measurement_temperature    293
_cell_volume                     416.72(6)
_diffrn_ambient_temperature      293
_diffrn_measurement_device_type  'Mar555 flat-panel detector at ID15B, ESRF'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.41127
_exptl_absorpt_coefficient_mu    1.019
_exptl_crystal_density_diffrn    2.1152
_exptl_crystal_F_000             112
_pd_instr_location               ' ?'
_pd_meas_2theta_range_inc        0.012
_pd_meas_2theta_range_max        34.994
_pd_meas_2theta_range_min        1.803
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_pd_proc_2theta_range_min        1.803
_pd_proc_ls_background_function
'Manual background combined with 6 Chebyshev polynoms'
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_pd_proc_ls_profile_function     Pseudo-Voigt
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_pd_proc_ls_prof_wR_expected     0.0320
_pd_proc_ls_prof_wR_factor       0.1569
_refine_ls_goodness_of_fit_all   4.90
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_constraints    1
_refine_ls_number_parameters     31
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0594
_refine_ls_shift/su_max          0.0481
_refine_ls_shift/su_mean         0.0053
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_all         0.0668
_refine_ls_wR_factor_gt          0.0667
_cod_data_source_file            ao0c00239_si_002.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 4517557--4517561.cif.
;
_cod_original_cell_volume        416.71(6)
_cod_original_formula_sum        'H5 Na3 Ni1'
_cod_database_code               4517557