Molecular complexes of cyclodextrins: Application of ion‐spray mass spectrometry to the study of complexes with selected nitramines

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Abstract
Complex formation of the important nitramines, RDX, HMX and TNAZ with α‐, β‐, and γ‐cyclodextrins (CDs) was studied using ion‐spray mass spectrometry (IS‐MS). Complexations between β‐CD/TNAZ, β‐CD/RDX, γ‐CD/RDX, and γ‐CD/HMX were detected in the gas phase by this technique. Control experiments using α‐CD and TNAZ did not lead to a detectable molecular association, which is in accord with the previously reported NMR data. In addition, none of the nitramines showed any complex formation with the non‐cyclic sugar, maltohexose. The IS‐MS results are in agreement with the previously reported conclusions from proton nuclear magnetic resonance spin‐lattice relaxation time measurements.

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