When materials are dissolved in solvents the solvent can become ordered around the solute, usually considered to be an ion that is a single atomic ion or a molecular ion. For larger particles, colloidal suspensions can form with the charge on the colloid an important parameter. Nanoparticles are increasingly viewed as being "somewhere between" a traditional colloid and a solution and it is becoming increasingly evident that solvent effects are important at the nano-dimensions. In a recent study, it has been demonstrated that carbon-nitride nanoparticles spontaneously dissolve in polar solvents by a thermodynamically-driven process. The goal of this experiment is to we will perform neutron diffraction measurements with isotopic substitution to investigate the changes in the structure of this polar solvent surrounding the nanoparticles.