Polyhedral Carboranes

Reaction of a 14-Vertex Carborane with Nucleophiles: Formation of nido-C2B12, nido-C2B11, and closo-CB11 Carborane Anions

“…Icosahedral carboranes C 2 B 10 H 10 R 2 have dominated the research activities in carborane chemistry for almost half a century . They can react with nucleophiles to selectively remove one BH vertex to give nido -C 2 B 9 H 9 R 2 2− dianions, initiating the chemistry of metallacarboranes .…”

Carborane radical anions: spectroscopic and electronic properties of a carborane radical anion with a 2n + 3 skeletal electron count

“…Unlike the well-characterised carborane 1, characterisation of [1] 22 is limited to 13 C NMR data and its geometry has not been determined. 14 Six different geometries are known for 12-vertex carboranes with 2n + 4 (nido) skeletal electron counts and some are fluxional in solution, pointing to low barriers to interconversion and hinting at the role solvent effects may play in stabilising these species. 15 Further studies of the dianion [1] 22 , including the formation of this species from [1] 2 by electrochemical and chemical redox methods, are in progress.…”

Synthesis, spectroscopy and structures of palladium(II) and platinum(II) complexes containing mercapto-o-carborane

“…Another interesting families of ligands incorporating o-carboranes may be conceived which would not only impose a three dimensional steric demand but also give cleaner depositions due to a weaker C-S linkage. Such ligands, e.g., 1-mercapto-2-phenylo-carborane [17,18], have been known in the literature for quite some time now [19,20]. Thus in pursuance of our interest on palladium and platinum complexes with organochalcogenolates, we have examined a few reactions of 1-mercapto-2-phenyl-o-carborane and mercapto-o-carborane with palladium and platinum complexes and evaluated the suitability of one representative compound for the preparation of palladium sulfide nanocrystals.…”