GEORGE A. OLAH, PhD, - 1927-2017 - was awarded the 1994 Nobel Prize in Chemistry for his work in hydrocarbon chemistry. Professor Olah was Director of the Loker Hydrocarbon Research Institute at the University of Southern California in Los Angeles. His research focused on the generation and reactivity of carbocations via superacids Ripudaman Malhotra is Associate Director of Chemical Science and Technology Laboratory at SRI International, a nonprofit research institute. Dr. Malhotra is an organic chemist who has worked extensively on the processing and analysis of fossil fuels, and advanced materials.

• General Concepts and Definitions (G. Olah, et al.). Geometrical Systematics of Nido-Carboranes, -Polyboranes and -Carbocations;Dominance of Aperture Dependant Electron Distribution and Charge Smoothing (R. Williams). Electron Distribution in Boranes and Carboranes (K. Wade). Ab Initio Geometries and Chemical Shift Calculations for Neutral Boranes and Borane Anions (M. Buehl & P. Schleyer). Skeletal Rearrangements in Clusters: Some New Theoretical Insights Involving Lipscomb's Diamond-Square-Diamond Mechanism (D. Mingos & D. Wales). Some Recently Determined Borane Structures and Their Implications (N. Greenwood). Electron Deficiency Aspects of the Small Carboranes (T. Onak & K. Fuller). Hypho-Dithiborane Clusters: Links Between Electron Deficient and Electron Precise Cage Systems (S. Kang & L. Sneddon). C-Trimethylsilyl-Substituted Carboranes and Their Derivatives (N. Hosmane & J. Maguire). Borane Transition Metal Cluster Chemistry: Hydroboration of the Unsaturated Cluster (?H)2OS3(CO)10 (D. Workman & S. Shore). Cyclocarborane-Stabilized Multidecker/Multicluster Sandwich Compounds and Linked Molecular Systems (R. Grimes). Boron-Transition Metal Compounds Containing Direct Metal-Boron Bonds;Recent Progress (T. Fehlner). Oxidative Addition of Carbon-Hydrogen Bonds to Soluble Complexes of Iridium and Osmium (T. Flood). Hypercarbon Cluster Chemistry of Hydrocarbons (G. Olah). Index.