Computer calculation of equilibrium constants of species present in mixtures of metal ions and complexing agents.

For decades, borides have been primarily studied as crystallographic oddities. With such a wide variety of structures (a quick survey of the Inorganic Crystal Structure Database counts 1253 entries for binary boron compounds!), it is surprising that the applications of borides have been quite limited despite a great deal of fundamental research. If anything, the rich crystal chemistry found in borides could well provide the right tool for almost any application. The interplay between metals and the boron results in even more varied material's properties, many of which can be tuned via chemistry. Thus, the aim of this review is to reintroduce to the scientific community the developments in boride crystal chemistry over the past 60 years. We tie structures to material properties, and furthermore, elaborate on convenient synthetic routes toward preparing borides.

Rediscovering the Crystal Chemistry of Borides.

Some new superconducting compounds

The chemistry of metals in low valence states is marked by the frequent occurrence of metal clusters, which are easily recognizable when they occur as molecular units. Many metal-rich compounds of transition metals with p-elements (3rd to the 6th main groups) are closely related to the corresponding halides, since they are built up from metal clusters of the same type. The clusters are however, linked together (condensed) by metal-metal bonds. This principle of construction holds particularly well in the case of the novel reduced halides of the lanthanoids.

Condensed Metal Clusters

The aqueous geochemistry of Zr and the solubility of some Zr-bearing minerals

/pdf/the-use-of-high-speed-digital-computers-for-the-least-34ggsi92es.pdf

The Use of High Speed Digital Computers for the Least Squares Calculation of Complexity Constants.

/pdf/the-crystal-structure-of-ru7b3-1i4r3zzs3j.pdf

The Crystal Structure of Ru7B3.

/pdf/least-squares-computer-calculations-of-equilibrium-constants-oub3gqzizm.pdf

Least Squares Computer Calculations of Equilibrium Constants from Solvent Extraction Data.

/pdf/least-square-method-for-computor-calculation-of-stability-5c77eln931.pdf

James C. Sullivan

Papers

The Use of High Speed Digital Computers for the Least Squares Calculation of Complexity Constants.

The Crystal Structure of Ru7B3.

Least Squares Computer Calculations of Equilibrium Constants from Solvent Extraction Data.

Least Square Method for Computor Calculation of Stability Constants.