EAN: 9789811316623

HIGH RESOLUTION IMAGING SPECTROSCOPY AND NUCLEA...

This thesis presents a series of experimental techniques based on scanning probe microscopy 
which make it possible access the degree of freedom of protons both in real and energy space.
These novel techniques and methods allow direct visualization of the concerted quantum
tunneling of protons within the hydrogen-bonded network and quantification of the quantum
component of a single hydrogen bond at a water-solid interface for the first time. Furthermore
the thesis demonstrates that the anharmonic quantum fluctuations of hydrogen nuclei further
weaken the weak hydrogen bonds and strengthen the strong ones. However  this trend was reversed
when the hydrogen bond coupled to the local environment. These pioneering findings
substantially advance our understanding of the quantum nature of H bonds at the molecular
level.

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