Abstract
High-resolution neutron diffraction results for KH2PO4 (KDP) and its deuterated form (DKDP) have been used to re-examine evidence that the large increase in the phase transition temperature, Tc, on deuteration can be explained simply by the increase in the phase transition temperature, Tc, on deuteration can be explained simply by the increase in the O...O hydrogen-bond length, 2R, without invoking proton tunnelling effects. It is shown that deuteration at constant 2R still gives rise to an increase in Tc by about 40 K. This may represent the direct proton tunnelling effect on Tc. However, there are other geometric changes on deuteration at constant 2R, and the effect of these needs to be assessed before any more definite conclusion can be reached.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
