Professor Vayenas is a distinguished chemist, and his work looks rather like a blend of Old Quantum Theory and particle physics, so I suppose it's an uphill fight for him. However, Bohr did get a lot, e.g. the hydrogen spectrum, from a simple assumption, and Vayenas is trying to follow the same path.
The papers he's published are relatively accessible and full of startling calculations that result in close agreement with experimental results. They make interesting reading, and I haven't found anything so far that would cause me to reject them out of hand.
From the conclusion of the current paper: "Another emerging conclusion is that neutrinos, electrons, positrons and photons are present in all composite particles and are apparently the only undividable [sic] elementary particles."
https://cheme.stanford.edu/events/colloquium-constantinos-g-...
