Quantum tunneling can have a dramatic effect on chemical reaction rates. In nonadiabatic
reactions such as electron transfers or spin crossovers, nuclear tunneling effects can be …

The connective tissue or fascia plays key roles in maintaining bodily function and health.
The fascia is made up of solid and fluid portions, which interpenetrate and interact with each …

Thermally activated chemical reactions are typically understood in terms of overcoming
potential-energy barriers. However, standard rate theories break down in the presence of a …

The spin-crossover reaction of thiophosgene has drawn broad attention from both
experimenters and theoreticians as a prime example of radiationless intramolecular decay …

We introduce an approach for calculating perturbative corrections to the ring-polymer
instanton approximation to tunneling splittings (RPI+ PC) by computing higher-order terms in …

We simulate two recent matrix‐isolation experiments at cryogenic temperatures, in which a
nitrene undergoes spin crossover from its triplet state to a singlet state via quantum …

The reactive singlet state of oxygen (O2) can decay to the triplet ground state nonradiatively
in the presence of a solvent. There is a controversy about whether tunnelling is involved in …

Instanton theory relates the rate constant for tunneling through a barrier to the periodic
classical trajectory on the upturned potential energy surface, whose period is τ= ℏ/(k BT) …

The rate of nonradiative decay between two molecular electronic states is succinctly
described by the energy gap law, which suggests an approximately exponential …

Canonical (thermal) instanton theory is now routinely applicable to complex gas-phase
reactions and allows for the accurate description of tunnelling in highly non-separable …