1. An alternative thermochemical reference system Introduction Alkanes as reference substances Compounds containing O, N, S, F, Cl, Br and/or I2. Hydrocarbons Alkanes Cycloalkanes Alkenes Monoolefines Cyclic mono-alkenes Di and polyolefines. Stabilization energy of butadiene Allenes Alkynes Aromatic hydrocarbons Stabilization energy of benzene Substituted benzene derivatives Polycyclic aromatic hydrocarbons3. The oxygen derivatives of hydrocarbons Alcohols Vinyl alcohol Phenols Ethers Cyclic ethers Stabilization energy of furan Peroxides Aldehydes and ketones Acetals and ketals Carboxylic acids Carboxylic acid esters Carboxylic acid anhydrides Ketene and carbon dioxide4. Organic compounds containing nitrogen Amines Azocycloalkanes Aromatic amines Carboxylic acid amides Hydrazine derivatives Nitriles Imines, oximes, hydroxylamines and azo compounds Heteroaromatic compounds Five member ring compounds. Stabilization energy of pyrrole Benzenoid heteroaromatic compounds Nitro compounds Organic nitrites and nitrates 5. Organosulfur compounds Thiols Organic sulfides Cyclic sulfides Stabilization energy of thiophene Thioaldehydes Carbothioic S-acids and esters Disulfides Sulfoxides, sulfones sulfites and sulfates6. Organohalides Halogens Alkyl halides Alkenyl halides Aryl halides Halogen derivatives of carboxylic acids and esters Carboxylic acid halides Carbonyl halides7. Radicals, cations, and anions Radicals Carbocations Carbanions Homolytic dissociation energies and relative enthalpies8. Inorganic compounds Elements Hydrogen compounds of the elements Carbon sulfides and oxides Sulfuric acid, sulfur oxides and halides Nitrogen compounds 9. Components of the heats of reactions 
About the Author: Árpád Furka got his PhD at the University of Szeged Hungary in 1959. As post doctor he participated in determination of the amino acid sequence of chymotrypsinogen-B at the University of Alberta Canada. From 1972 to 2001 he was full professor at Eötvös Loránd University Budapest Hungary. He wrote a text book for his students in Hungarian: Szerves kémia, Nemzeti Tankönyvkiadó 1988. When writing this book he realized that there is a need for characterization of organic compounds with their reliable structure dependent energies. The result is a series of publications and the content of this book. This approach also makes possible to interpret the heats of reactions as the consequences of transformations of individual structures. Professor Furka is best known as a father of combinatorial chemistry. He first described the principles of this new discipline in a notarized document in 1982.