Compositions for low-temperature distillation of high-boiling-point molecules

A method to separate a molecule from an impurity, comprising:

• providing a composition comprising the molecule and the impurity, wherein the molecule is present in the composition in a solid phase or a liquid phase, and the impurity is present in the composition in a solid phase or a liquid phase;
• converting the molecule into a vaporized molecule in a gas phase, wherein the gas phase has a pressure and a temperature, the molecule has a boiling point at the pressure and a vapor pressure at the temperature, the pressure of the gas phase is greater than the vapor pressure of the molecule, the boiling point of the molecule is greater than the temperature of the gas phase, and either the impurity lacks a vapor pressure or the impurity has a vapor pressure at the temperature that is less than the vapor pressure of the molecule at the temperature;
• separating the vaporized molecule from the impurity;
• and condensing the vaporized molecule into a condensed molecule.