Poly-iodinated closo 1,2-C2B10 and nido [7,8-C2B9]- carborane frameworks: Synthesis and consequences

The preparation of Cc-monosubstituted closo and nido carborane derivatives, mono-, di and tetraiodinated is reported. Some of these mono-to poly-iodinated nido carboranes are studied in terms of the acidity of the open face bridging proton, their chemical shift position in the H-1 NMR, and the lesser tendency to eta(5)-coordination in parallel to a larger number of iodo groups. (C) 2015 Elsevier B.V. All rights reserved.