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Digitale Medien

f-Element/crown ether complexes 2. The synthesis and crystal structure of Y(NO3)3(12-crown-4) (1986)

Rogers, Robin D. ; Kurihara, Lynn K.

Springer

Journal of inclusion phenomena and macrocyclic chemistry 4 (1986), S. 351-358

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Details

ISSN: 1573-1111

Schlagwort(e): 12-crown-4 ; yttrium ; complex ; X-ray crystal structure

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract Y(NO3)3(12-crown-4) was prepared via reaction of the crown ether and Y(NO3)3·nH2O in acetonitrile. Y(NO3)3(12-crown-4) crystallizes in the monoclinic space groupP21/c witha=12.084(5),b=8.524(4),c=15.150(6) Å, β=91.62(3)0 andD calc=1.92 g cm−3 forZ=4. The structure was refined by least-squares to a final conventionalR value of 0.105 using 1249 independent observed reflections [I≥3σ(I)]. The title compound is isostructural with its Eu(III) analog. The yttrium ion is ten-coordinate, bonded to three bidentate nitrate groups and to the four oxygens of the crown ether. The coordination polyhedron is best described as a 4A, 6B-extended dodecahedron. The Y-O(nitrate) and Y-O(ether) separations average 2.44(5) and 2.46(4) Å, respectively.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00656162

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