The cluster [Co38As12(CO)50]4– was obtained by pyrolysis of [Co6As(CO)16]−. The metal cage features a closed-packed core inside a Co/As shell that progressively deforms from a cubic face-centered symmetry. The redox… Click to show full abstract
The cluster [Co38As12(CO)50]4– was obtained by pyrolysis of [Co6As(CO)16]−. The metal cage features a closed-packed core inside a Co/As shell that progressively deforms from a cubic face-centered symmetry. The redox and acid–base reactivities were determined by cyclic voltammetry and spectrophotometric titrations. The calculated electron density revealed the shell-constrained distribution of the atomic charges, induced by the presence of arsenic.
               
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