Since in this case there is a large disparity between model A (26A) and B (26B), the latter is taken as more accurate and should be used for interpretation. This situation is favorable with respect to moderating the reactivity of highly energetic precursors, as cooling does not only decrease the kinetic rates but also decreases the thermodynamic driving force. For py-AlMe3/py-AlCl3, pentacoordinate states (5C) with THF donors in axial positions were assumed: py-AlMe3(THF) (3A) and py-AlCl3(THF) (5A). To visualize the interaction of the condensation with coordination, these two reactions, along with 2A and 4A, were added up to form a system with total composition py-AlMe3 + py-AlCl3 + 3 Me3SnOSiH3 + THF, where either of the Al precursors can undergo condensation (evolving SnMe4 or SnMe3Cl, respectively) and both Al educt and Al product can coordinate to THF. The total Gibbs free energy of the system in various states is then displayed in Figure and Figure for 0 and 298.15 K, respectively.