It is generally believed that the old quantum theory, as presented by Niels Bohr in 1913, fails
when applied to few electron systems, such as the H2 molecule. Here we review recent …

Niels Bohr originally applied his approach to quantum mechanics to the H atom with great
success. He then went on to show in 1913 how the same “planetary-orbit” model can predict …

Danish physicist Niels Bohr published his atomic models.[1] In 1911–1912 he had visited
the centers of experimental and theoretical atomic physics: Cambridge (where Thomson, the …

Despite the great power and scope of modern computers, there remains yearning for
intuitive, pedagogically appealing ways to understand electronic structures in atoms …

The book consists of two parts: A summary and critical examination of chemical theory as it
developed from early beginnings through the dramatic events of the twentieth century, and a …

We develop a model of molecular binding based on the Bohr–Sommerfeld description of
atoms together with a constraint taken from conventional quantum mechanics. The model …

We present a new dimensional scaling transformation of the Schrödinger equation for the
two electron bond. This yields, for the first time, a good description of the bond via D scaling …

The standard dimensional continuation of the Schrddinger equation, in which the kinetic
energy is generalized to arbitrary D, while the potential energy is left unchanged, leads to …

The Kohn–Sham potential v eff (r) is the effective multiplicative operator in a noninteracting
Schrödinger equation that reproduces the ground-state density of a real (interacting) system …

In the large-dimension limit, a scaling transformation reduces electronic structure to a
classical form in which the wavefunctions shrink to delta functions. The fixed geometrical …