This essay describes the successive births of valence bond (VB) theory during 1916–1931.
The alternative molecular orbital (MO) theory was born in the late 1920s. The presence of …

Chapter 1 is a tutorial covering Valence Bond Theory. Provided is a detailed view of VBT vis‐
à‐vis MOT, its demise, and then its renaissance; in short this chapter presents a history …

An ab initio nonorthogonal valence bond program, called XMVB, is described in this article.
The XMVB package uses Heitler–London–Slater–Pauling (HLSP) functions as state …

An original computational method of ab initio valence bond type is proposed, aiming at
yielding accurate dissociation energy curves, while dealing with wave functions being very …

In contrast to transition metals (TMs), main-group metals (MMs) show a bewildering variety
of bonding arrangements to cyclopentadienyl (Cp) groups, including electron-precise …

This Perspective outlines a panoramic description of the nature of the chemical bond
according to valence bond theory. It describes single bonds and demonstrates the existence …

In this article we describe the unique insights into the electronic structure of molecules
provided by generalized valence bond (GVB) theory. We consider selected prototypical …

Valence bond (VB) theory and ring-current maps have been used to study the electronic
structure of inorganic benzene analogues X6H6 (X= C (1), Si (2)), X6 (X= N (3), P (4)) …

The effect of cyclopentafusion on the aromatic properties of pyrene and its cyclopentafused
congeners has been studied by calculating resonance energies, using the valence bond …

Charge-shift bonds form a distinct class of bonds where all or most of the bond energy is
provided by the resonance energy between the covalent and ionic structures of the bond …