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Updated: Mar 28, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Inductive effects of 10 and 12-vertex closo-carborane anions: cluster size and charge make a difference
Jess Estrada1, Christopher A Lugo1, Scott G McArthur1
1Center for Catalysis, Department of Chemistry University of California Riverside, Riverside, CA 92521, USA. vincent.lavallo@ucr.edu.
Abstract:
A phosphine containing a 10-vertex carborane anion substituent and its subsequent ligation to a Rh(I) carbonyl complex is reported. The complex is characterized by NMR spectroscopy and a single crystal X-ray diffraction study. In addition, the inductive effects of both 10 and 12 vertex C-functionalized closo-carborane anions are elucidated via I.R. analysis of the CO stretching frequencies of two Rh carbonyl complexes. Unlike C-functionalized neutral o-carborane the 10 and 12-vertex carborane anions are both strong electron donor substituents.
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