The finite body triangulation: algorithms, subgraphs, homogeneity estimation and application.

The concept of a finite body Dirichlet tessellation has been extended to that of a finite body Delaunay 'triangulation' to provide a more meaningful description of the spatial distribution of nonspherical secondary phase bodies in 2- and 3-dimensional images. A finite body triangulation (FBT) consists of a network of minimum edge-to-edge distances between adjacent objects in a microstructure. From this is also obtained the characteristic object chords formed by the intersection of the object boundary with the finite body tessellation.

Chemical stability and characterization of rhodium-diisocyanide coordination polymers.

Poly-[Rh(1,4-phenylene diisocyanide)+4/2(Cl)-] has a two-dimensional template structure, where Rh atoms are bonded by the -conjugated 1,4-phenylene diisocyanide (pdi) ligands in the x-y plane and through overlapping dz orbitals in the z direction. The more conductive metallic bonds in the z direction create anisotropy in the electrical conductivity. The anisotropy and unique geometry of poly-[Rh(pdi)+4/2(Cl)-] make it a useful test bed for examining the relationship between electrical properties and chemical stability in metal-isocyanide molecular wire systems.