Structural integrity upon encapsulation

D2O. From the integrated value of the signal, the rate of encapsulation of H2O was shown to be 75%, which decreased reversibly upon heating the solution. Although elemental analysis of the isolated solid indicated the structure to be the monohydrate, H20 62 (R = Me), the molecular ion peak corresponding to H20(g)62 (R = Me) was not detected in the MS spectmm. Thus, the molecule of H2O can get in and out in solution but escapes from 62 in the gas phase. 

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