Novel heptavalent actinide compounds: tetrasodium dihydroxidotetraoxidoneptunate(VII) hydroxide dihydrate and its plutonium analogue
Grigoriev, Mikhail S.; Krot, Nikolai N.; Acta Crystallographica Section C 65 (2009) i91–i93; doi:10.1107/S0108270109044394

data_2017426
_publ_section_title
;
 Novel heptavalent actinide compounds: tetrasodium
 dihydroxidotetraoxidoneptunate(VII) hydroxide dihydrate and its
 plutonium analogue
;
_journal_coeditor_code           FA3208
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              i91
_journal_page_last               i93
_journal_paper_doi               10.1107/S0108270109044394
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'Na4 [Np O4 (O H)2] (O H), 2H2 O'
_chemical_formula_moiety         '4(Na +), H2 Np O6 3-, 2(H2 O), H O -'
_chemical_formula_sum            'H7 Na4 Np O9'
_chemical_formula_weight         480.02
_chemical_name_systematic
;
Tetrasodium dihydroxidotetraoxidoneptunate(VII) hydroxide dihydrate
;
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_symmetry_space_group_name_Hall  '-P 1'
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_cell_length_b                   8.1157(2)
_cell_length_c                   10.9434(3)
_cell_measurement_reflns_used    8013
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      35.00
_cell_measurement_theta_min      2.01
_cell_volume                     471.36(3)
_computing_cell_refinement       'SAINT-Plus (Bruker, 1998)'
_computing_data_collection       'APEX2 (Bruker, 2006)'
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_computing_molecular_graphics    'SHELXTL97 (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL97 (Sheldrick, 2008)'
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_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type
'Bruker Kappa  APEXII area-detector diffractometer'
_diffrn_measurement_method       '\w- and \f-scans'
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_exptl_crystal_colour            black
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_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'calc w=1/[\s^2^(Fo^2^)+(0.0277P)^2^+0.1404P] where P=(Fo^2^+2Fc^2^)/3'
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_cod_database_code               2017426
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