Magnetic resonance is a powerful technology that has had a major impact across the physical, life, and medical sciences, from chemistry to medical imaging, with ever-expanding applications in new areas as diverse as mining and food science. It is, however, also a difficult subject to teach, as the theory is complex and requires some familiarity…

An introductory guide to deducing the mechanism of chemical reactions is presented. Following a typical workflow for probing reaction mechanism, the guide introduces a wide range of kinetic and mechanistic tools. In addition to serving as a broad introduction to mechanistic analysis for students and researchers, the guide has also been used by…

Recent science reform documents have called for incorporating authentic scientific discourse into science classes as engaging in discourse has shown to result in numerous benefits. Whether these benefits are observed in students depends upon the quality of the discourse in which they engage. However, characterizing the quality of student-student…

Presented are three theories of superconductivity: (1) the London theory; (2) the Bardeen, Cooper, Schrieffer (BCS) theory; and (3) the sudden-polarization theory. (RH)

This is Part II in a series on Fourier transforms. Described are Fourier transform techniques using spectrometers in chemistry. Advantages of the technique are discussed. (RH)

This is Part II in a series on Fourier transform infrared spectroscopy (FT-IR). Described are various advantages of FT-IR spectroscopy including energy advantages, wavenumber accuracy, constant resolution, polarization effects, and stepping at grating changes. (RH)

Focuses on a recent approach to chirality that seeks to call attention to the fact that current usage of this term is often inconsistent with its proper relationship to molecular structure. (TW)

This paper explores how Fourier Transform (FT) mimics spectral transformation, how this property can be exploited to advantage in spectroscopy, and how the FT can be used in data treatment. A table displays a number of important FT serial/spectral pairs related by Fourier Transformations. A bibliography and listing of computer software related to…

Gives results of a survey of attitudes and ideas about professional standards among relatively new research chemists (N=124), which offers insights into how to bring into accord the academic and industrial concepts of the profession of research chemistry. Responses are summarized for each question, in the order asked. (JN)

Contains a discussion of applications of principles of electronegativity. Concentrates on partial charges on atoms in a variety of compounds. (CW)

Summarizes the general principles governing the significance and applications of electronegativity. Presents and discusses seven principles in a general way. Describes electronegativity in general as a consequence of incompletely screened nuclear charge effective within stable outer orbital vacancies, which in turn is a function of the atomic…

Gives a simple but fuller account of the basis for accurately calculating temperature rise in calorimetry. Points out some misconceptions regarding these calculations. Describes two basic methods, the extrapolation to zero time and the equal area method. Discusses the theoretical basis of each and their underlying assumptions. (CW)

Describes a satisfactory junction that can be easily fabricated. Discusses the specifications and applications of the junction. States that this junction is especially useful for microcells. (CW)

Looks at what the problems are in the use of quantities and units in chemistry and what has been achieved until this time. Considers quantity and amount of substance, quotients of physical quantities, composition of mixed phases, and equations with quantities. Makes recommendations for future considerations. (CW)

Presents a study designed to evaluate the influence of temperature on the equilibrium and the structural changes of the complexes interpreted in terms of ligand field theory. (CW)