Table 1: Summary of the tentative assignments presented in the text.

EPC (cm−1)PC (cm−1)PC D22 (cm−1)PC D35 (cm−1)PI (cm−1)EPG (cm−1)CL (cm−1)EPE (cm−1)PE (cm−1)ESM (cm−1)Tentative assignment

542 (sh)δ(CN+(CD3)3)
575575575577δ(CN+(CH3)3)
559560 𝛿 o o p (C–OH)
552555δ(CN+H3)
548 𝛿 o o p (C–N–OH)
532530528 (sh)527 (sh)538540534532δ(O–P=O)
521517521511519δ(O–P–O)
505505503507507δ(O–P–O)
488
463473461457463459463457465461τ(C–C)n?
426416411
382368376392 (sh)395390τ(CCN)
355
344Inositol ring
309312309307
267
247244τ(C–CD3)
252251239230250245237235τ(C–CH3)
187189187189187214195185193τ(C–CH2), τ(C–CD2),
hydrogen bonds
96969610214590106Hydrogen bonds