Melting points of compounds of the heavier Group 14 elements: the influence of the polarizability effect
摘要
The literature data on melting points (Tm) of silicon, germanium, tin, and lead compounds of 26 narrow series has been analyzed. The considered compounds form weak intermolecular complexes, which leads to the appearance of the polarizability effect. Using the correlation analysis, it was established for the first time that the Tm values depend on the combined influence of the inductive, resonance, polarizability, and steric effects of substituents. The contribution of the polarizability effect reaches 65%.