ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
A Contribution about Oxometallates Containing Trigonal Planar BO3-Polyhedra. Ni2MBO5 (M = Ga, Fe, Al, Cr)(I) Ni2AlBO5, (II) Ni2FeBO5, and (III) Ni2GaBO5 were investigated by single crystal X-ray technique. They crystallize with orthorhombic symmetry, space group D2h9 - Pbam; I: a = 9.102; b = 12.011; c = 2.944 Å; II: a = 9.200; b = 12.210; c = 3.006 Å; III: a = 9.200; b = 12.154; c = 2,986 Å; Z = 4. X-ray powder data indicate that Ni2CrBO5 is isotypic. It was possible to study the metal distribution in Ni2AlBO5. Ni2+ and Al3+ ions occupy the point positions partly disordered.
Notes:
An Einkristallen wurden (I) Ni2AlBO5, (II) Ni2FeBO5 und (III) Ni2GaBO5 untersucht. Sie kristallisieren mit orthorhombischer Symmetrie, Raumgruppe D2h9 - Pbam mit I: a = 9,102; b = 12,011; c = 2,944 Å; II: a = 9,200; b = 12,210; c = 3,006 Å; III: a = 9,200; b = 12,154; c = 2,986 Å; Z = 4. Die Pulverdaten für Ni2CrBO5: a = 9,213; b = 12,110; c = 2,983 Å zeigen die Isotypie zu I-III. An I konnte die Metallverteilung studiert werden, Al3+ und Ni2+ sind partiell statistisch im Metallteilgitter angeordnet.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19905820103
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