found to be monomeric in the liquid state. However, 2-n-butoxy-1, 3, 2-dioxaborolane, IIc, which was previously reported6 to be monomeric in cyclohexane solution, has now been found to have an intermediate degree of association in benzene at least in the concentration range indicated. The molecular weight of 2-ethoxy-1, 3, 2-borolane (IIb) was not determined, but on the basis of its reported boiling point6 it is probably dimeric or highly associated ...
![tris[2-(2-ethoxyethoxy)ethyl] borate Structure](https://image.chemsrc.com/caspic/167/42598-88-9.png)