Anomalously soft dynamics of water in a nanotube: a revelation of nanoscale confinement

Alexander I. Kolesnikov, Jean Marc Zanotti, Chun Keung Loong, Pappannan Thiyagarajan, Alexander P. Moravsky, Raouf O. Loutfy, Christian J. Burnham

Research output: Contribution to journalArticlepeer-review

482 Scopus citations

Abstract

Quasi-one-dimensional water encapsulated inside single-walled carbon nanotubes, here referred to as nanotube water, was studied by neutron scattering. The results reveal an anomalously soft dynamics characterized by pliable hydrogen bonds, anharmonic intermolecular potentials, and large-amplitude motions in nanotube water. Molecular dynamics simulations consistently describe the observed phenomena and propose the structure of nanotube water, which comprises a square-ice sheet wrapped into a cylinder inside the carbon nanotube and interior molecules in a chainlike configuration.

Original languageEnglish
Pages (from-to)35503
Number of pages1
JournalPhysical Review Letters
Volume93
Issue number3
StatePublished - Jul 16 2004
Externally publishedYes

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