THE CRYSTAL AND MOLECULAR-STRUCTURE OF SODIUM HEXACYANOOSMATE(II) DECAHYDRATE AND RELATED HEXACYANOMETALATE COMPLEXES

被引：27
|
作者：
GENTIL, LA
NAVAZA, A
OLABE, JA
RIGOTTI, GE
机构：
[1] UNIV BUENOS AIRES,FAC CIENCIAS EXACTAS & NAT,DEPT QUIM INORGAN ANALIT & QUIM FIS,PABELLON 2,RA-1428 BUENOS AIRES,ARGENTINA
[2] UNIV NACL MAR DEL PLATA,DEPT INGN QUIM,MAR DEL PLATA,ARGENTINA
[3] NATL UNIV LA PLATA,DEPT FIS,CRISTOLOG LAB,RA-1900 LA PLATA,ARGENTINA
来源：
INORGANICA CHIMICA ACTA | 1991年 / 179卷 / 01期
关键词：
D O I：
10.1016/S0020-1693(00)85378-5
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The crystal structures of sodium hexacyanoosmate, ruthenate and ferrate decahydrates, Na4M(CN)6.10H2O (M = Os, Ru, Fe), have been determined from X-ray diffraction data and refined by full matrix least-squares to final agreement values: R = 0.038, R(w) = 0.039, R = 0.026, R(w) = 0.041; R = 0.060, R(w) = 0.043 for Os, Ru and Fe compounds, respectively. The compounds are isostructural and crystallize in the monoclinic space group P2(1)/n, Z = 2, with a = 9.154, b = 11.506, c = 9.876 angstrom, beta = 97.95-degrees; a = 9.146, b = 11.486, c = 9.867 angstrom, beta = 98.00-degrees; a = 9.038, b = 11.450, c = 9.782 angstrom, beta = 97.57-degrees, for Os, Ru and Fe compounds, respectively. The structure can be described as layers of hexacyanometallate anions, intercalated with layers of sodium polyhedra containing hydration water molecules and N atoms, perpendicular to the crystallographic ac plane. Metal-C and C-N distances for the hexacyanide anions are correlated with those from other structurally related moieties. The infrared spectra of the compounds are complementary with previous results for potassium salts.
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页码：89 / 96
页数：8
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