A reinvestigation of the enthalpies of reaction of silicon, germanium, and tin tetrahalides with pyridine and isoquinoline

Abstract

Enthalpies of formation of crystalline MX₄,2L complexes (where M = Si, Ge, or Sn; L = pyridine or isoquinoline; X = F, Cl, or Br, except X = Cl only when M = Sn) have been redetermined with a more sensitive calorimeter and improved techniques to exclude water impurity. Contrary to previous results, values do not vary greatly in each series of related adducts, except for the order GeF₄,2L > SiF₄,2L.