Table 6: H-bond distancesa (in angstrom) for the intramolecular H-bond interactions detected in the dipeptide structures in both the phases.

DipeptidesPhasesN5H10–N6O11H–C7O12H–C7O13H–C7

Sec-ValAqueous2.1522.422abs2.658
Gas2.2282.349abs2.712
Sec-LeuAqueous2.1752.595abs2.555
Gas2.2082.413abs2.682
Sec-AspAqueous2.1562.4012.723abs
Gas2.1762.3232.670abs
Sec-SerAqueous2.1472.443abs2.537
Gas2.2242.402abs2.553
Sec-GlnAqueous2.1882.708abs2.532
Gas2.2072.504abs2.599
Sec-HisAqueous2.1572.438abs2.530
Gas2.2212.412abs2.548
Sec-PylAqueous2.1622.523abs2.589
Gas2.2152.366abs2.637

Only the (BH) distances are listed where B is H-bond acceptor; abs: absent.