Curved Arrow Press

Where Chemistry Makes Sense

The Nature of the Chemical Bond -- Revisited

Press Release

"The Nature of the Chemical Bond—Revisited" is both a scientific investigation and a personal account of one educator's search for a more coherent understanding of chemical bonding. Drawing on years of teaching organic chemistry, the book traces how a dissatisfaction with the conventional theory of electronegativity led to a broader reexamination of atomic structure and bonding.

Although electronegativity has long served as a cornerstone of chemical education, the author argues that aspects of the theory appear inconsistent with the experimental observations it was intended to explain. This question prompted an exploration of an electron-pair model—a concept with deep historical roots but one that has never been fully developed as a physical model of chemical bonding.

Beginning with the simplest molecule, hydrogen, the book investigates whether an electron-pair model can provide a unified explanation of covalent and ionic bonding. From this perspective, the bond length of hydrogen fluoride is used as a reference for estimating the effective size of the fluorine atom, providing a straightforward framework for comparing bond lengths and bond types across a wide range of compounds.

As these ideas are extended to atomic structure, the discussion inevitably reaches molecular orbital theory and the foundations of quantum chemistry. The book revisits the relationship between the Schrödinger Equation and the Bohr model of the atom, noting that Gilbert N. Lewis expressed reservations about the Bohr model without fully explaining them. The author argues that a literal interpretation of the Bohr model raises questions about the conventional interpretation of atomic energy levels and emission spectra, suggesting that accepted mathematical descriptions may not provide the clearest physical picture.

Rather than presenting isolated criticisms of established theories, "The Nature of the Chemical Bond—Revisited" develops an alternative conceptual framework intended to account for observable chemical behavior with greater internal consistency. Established models are recognized where they successfully describe experimental results, while alternative explanations are proposed where the author believes current interpretations remain incomplete.

Written for chemists, educators, and scientifically curious readers, the book invites its audience to reconsider familiar concepts through careful examination of experimental evidence and logical argument. Readers need not agree with every conclusion to engage with the central thesis; the goal is to present the reasoning openly so that each idea may be evaluated on its own merits.

 

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