K~1+2<i>x~</i>Ni~1{-~<i>x</i>}Fe~2~(AsO~4~)~3~ (<i>x</i> = 0,125): un nouvel arséniate à structure de type α-CrPO~4~
Ben Smail, Ridha; Zid, Mohamed Faouzi; Acta Crystallographica Section E 73 (2017) 239–245; doi:10.1107/S2056989017000950

data_2242050
_publ_section_title
;
 K~1+2<i>x~</i>Ni~1{-~<i>x</i>}Fe~2~(AsO~4~)~3~ (<i>x</i> = 0,125): un
 nouvel ars\'eniate \`a structure de type \a-CrPO~4~
;
_journal_coeditor_code           VN2121
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              239
_journal_page_last               245
_journal_paper_doi               10.1107/S2056989017000950
_journal_volume                  73
_journal_year                    2017
_chemical_formula_iupac          'K1.25 Ni0.88 Fe2 (As O4)3'
_chemical_formula_sum            'As3 Fe2 K1.25 Ni0.88 O12'
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;
Potassium nickel diiron(III) tris[arsenate(V)]
;
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;
CAD-4 EXPRESS (Duisenberg, 1992; Mac\'i\<cek & Yordanov, 1992)
;
_computing_data_collection
;
CAD-4 EXPRESS (Duisenberg, 1992; Mac\'i\<cek & Yordanov, 1992)
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XCAD4 (Harms & Wocadlo, 1995)
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DIAMOND (Brandenburg, 2006)
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WinGX (Farrugia, 2012) & publCIF (Westrip, 2010)
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SHELXL2014 (Sheldrick, 2015)
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;
SHELXS97 (Sheldrick, 2008)
;
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_diffrn_standards_interval_count 120
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    15.161
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_exptl_absorpt_correction_T_min  0.3724
_exptl_absorpt_correction_type   psi-scan
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;
(North <i>et al.</i>, 1968)
;
_exptl_crystal_colour            brown
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;
SHELXL2014 (Sheldrick, 2015)
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_refine_ls_goodness_of_fit_ref   1.102
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_refine_ls_number_parameters     58
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_refine_ls_number_restraints     0
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_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0629P)^2^+3.0716P] where P=(Fo^2^+2Fc^2^)/3'
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_reflns_threshold_expression     'I > 2\s(I)'
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_cod_data_source_block           I
_cod_database_code               2242050
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_shelx_estimated_absorpt_t_max   0.336
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