TY - JOUR

T1 - Crystal structure of urusovite Cu[AlAsO5]

T2 - A new type of a tetrahedral aluminoarsenate polyanion

AU - Krivovichev, S. V.

AU - Molchanov, A. V.

AU - Filatov, S. K.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - The crystal structure of the new mineral urusovite Cu[AlAsO5] has been determined (monoclinic system, sp. gr. P21/c, a = 7.335(1) Å, b = 10.255(1) Å, c = 5.599(1) Å, β = 99.79(1)°, V = 415.0(1) Å3, Z= 4). The structure is solved by direct methods and refined to R = 0.048 (wR = 0.103). The structure is built by open-branched {uB, 2∞} [AlAsO5]2- layers parallel to the (100) plane. The layers consist of two-link chains of 1∞[Al2O6] tetrahedra, which are parallel to the z-axis and are connected through the [AsO4]-groups. The sharing-edges [CuO5] tetragonal pyramids link the aluminoarsenate layers to form a three-dimensional framework. The established layer is the second example of an tetrahedral aluminoarsenate polyanion.

AB - The crystal structure of the new mineral urusovite Cu[AlAsO5] has been determined (monoclinic system, sp. gr. P21/c, a = 7.335(1) Å, b = 10.255(1) Å, c = 5.599(1) Å, β = 99.79(1)°, V = 415.0(1) Å3, Z= 4). The structure is solved by direct methods and refined to R = 0.048 (wR = 0.103). The structure is built by open-branched {uB, 2∞} [AlAsO5]2- layers parallel to the (100) plane. The layers consist of two-link chains of 1∞[Al2O6] tetrahedra, which are parallel to the z-axis and are connected through the [AsO4]-groups. The sharing-edges [CuO5] tetragonal pyramids link the aluminoarsenate layers to form a three-dimensional framework. The established layer is the second example of an tetrahedral aluminoarsenate polyanion.

UR - http://www.scopus.com/inward/record.url?scp=0034337421&partnerID=8YFLogxK

U2 - 10.1134/1.1312909

DO - 10.1134/1.1312909

M3 - Article

AN - SCOPUS:0034337421

VL - 45

SP - 723

EP - 727

JO - Crystallography Reports

JF - Crystallography Reports

SN - 1063-7745

IS - 5

ER -