It can be seen that the average coordination number around Ge atoms is close to four atoms, as is expected by the formation of tetrahedral
units in the network.
The resulting energy curves also show that the energy at the tetrahedral
sites is a local minimum of path B.
The data reported here overall indicate for the Co(II) complexation a tetrahedral
coordination geometry similar to that of the native zinc and that the replacement of the zinc ion by the Co(II) does not drastically perturb the structural properties of the prokaryotic zinc finger domain.
Our method is based on FS-FEM because it is stable, accurate, and insensitive to mesh distortion in linear elasticity simulation using tetrahedral
We considered a model of Wyoming-type montmorillonite with octahedral and tetrahedral
substitutions, as schematically shown in Figure 2.
Cytokinesis in microsporocyte meiosis is of the simultaneous type, and the micropore tetrads are tetrahedral
. Formation of the anther wall conforms to the basic type.
In cubic spinel structure is involved [Zn.sup.2+.sub.1- x][Fe.sub.1+x.sup.3+] A [[Ni.sub.x.sup.2+][Fe.sub.1-x.sup.3+]B ferrites, which Zn ions are occupied tetrahedral
(A) sites, Ni ions are occupied octahedral (B) sites and [Fe.sup.3+]ions are distributed between tetrahedral
and octahedral sites, and the other low frequency modes are performed the characteristics of the octahedral group (B-site) of ferrites .
Instead of interlocking in the neat lattices of diamonds, carbon tetrahedrals
jumbled together in an amorphous heap.