Open AccessThe molecular dimensions of organic compounds. Part I.-General considerations
Publication year - 1929
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1929.0091
Subject(s) - benzene , cyclohexane , pyridine , toluene , thiazole , chemistry , boiling point , similarity (geometry) , melting point , computational chemistry , organic chemistry , computer science , artificial intelligence , image (mathematics)
The investigation now described had for its object the examination of the physical properties of compounds, such as benzene and thiophen, which have long been known as examples of “mimicry” in organic chemistry, in order to find out whether the persistent similarity of boiling-point, which Victor Meyer observed in corresponding compounds of the two series, extends also to their other properties. In particular it was of interest to know whether these compounds exhibited the remarkable similarity of properties which Langmuir found in the case of “isosteric” substances, such as CO2 and N2 O, or CO and N2 , in which the electronic configuration is similar although the distribution of mass and charge in the nuclei is different. The substances selected for the investigation were:— (1) Benzene and thiophen. (2) Toluene and methyltliiophen. (3) Benzene and cyclohexane. (4) Benzene, pyridine and thiazole.