Crystallographic studies of cobalt arsenates. IV. Crystal parameters of cobalt diarsenate
1970; NRC Research Press; Volume: 48; Issue: 2 Linguagem: Inglês
10.1139/v70-059
ISSN1480-3291
AutoresJ. Ozog, N. Krishnamachari, C. Calvo,
Tópico(s)Crystal Structures and Properties
ResumoThe crystal structure of cobalt diarsenate has been shown to be a new member of a series of structures closely related to that of the mineral thortveitite. The triclinic unit cell parameters are: a = 6.55 Å, b = 8.52 Å, c = 4.76 Å, α = 91.0°, β = 104.0°, γ = 91.3°. There are 2 molecules per unit cell with a symmetry Cl or [Formula: see text] and a measured density 5.01 g/cm 3 . The single crystal patterns show nearly the C2/m symmetry characteristic of the mineral thortveitite and its analogues.
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