Sason Shaik – författare

Chemistry as a Game of Molecular Construction: The Bond-Click Way utilizes an innovative and engaging approach to introduce students to the basic concepts and universal aspects of chemistry, with an emphasis on molecules’ beauty and their importance in our lives.•           Offers a unique approach that portrays chemistry as a window into mankind’s material-chemical essence•           Reveals the beauty of molecules through the “click” method, a teaching methodology comprised of the process of constructing molecules from building blocks•           Styles molecular construction in a way that reveals the universal aspect of chemistry•           Allows students to construct molecules, from the simple hydrogen molecule all the way to complex strands of DNA, thereby showing the overarching unity of matter• Provides problems sets and solutions for each chapter

Updated resource on theoretical aspects and applications of valence bond methods to chemical calculations A Chemist’s Guide to Valence Bond Theory explains how to use valence bond theory to think concisely and rigorously and how to use VB computations. It familiarizes the reader with the various VB-based computational tools and methods available today and their use for a given chemical problem and provides samples of inputs/outputs that instruct the reader on how to interpret the results. The book also covers the theoretical basis of Valence Bond (VB) theory and its applications to chemistry in the ground- and excited-states. Applications discussed in the book include sets of exercises and corresponding answers on bonding problems, organic reactions, inorganic/organometallic reactions, and bioinorganic/ biochemical reactions. This Second Edition contains a new chapter on chemical bonds which includes sections on covalent, ionic, and charge-shift bonds as well as triplet bond pairs, a new chapter on the Breathing-Orbital VB method with its application to molecular excited states, and several new sections discussing recent developments such as DFT-based methods and solvent effects via the Polarizable Continuum Model (PCM). A Chemist’s Guide to Valence Bond Theory includes information on: Writing and representing valence bond wave functions, overlaps between determinants, and valence bond formalism using the exact HamiltonianGenerating a set of valence bond structures and mapping a molecular orbital-configuration interaction wave function into a valence bond wave functionThe alleged “failures” of valence bond theory, such as the triplet ground state of dioxygen, and whether or not these failures are “real”Spin Hamiltonian valence bond theory and its applications to organic radicals, diradicals, and polyradicalsA Chemist’s Guide to Valence Bond Theory is an essential reference on the subject for chemists who are not necessarily experts on theory but have some background in quantum chemistry. The text is also appropriate for upper undergraduate and graduate students in advanced courses on valence bond theory.

Electric-field-mediated chemistry is an emerging topic that is rapidly growing and fanning out in many directions. It involves theoretical and experimental aspects, as well as intense interplay between them, including breakthrough achievements such as the proof-of-principle that a Diels–Alder reaction, which involves two simultaneous C–C bond making events, can be catalysed or inhibited simply by changing the direction of an oriented external-electric field (OEEF). This productive interplay between the theoretical and experimental branches of chemistry is continuing, and gradually defining a new sub-field wherein various sources of electric fields, whether external or built-in and designed, or even surface induced fields (plasmons), are brought to bear on chemical reactions, molecular structures, and nano-systems, leading to control of reactivity, selectivity, chirality, molecular orientations, changes in structure, and in dynamics.Written by leaders in the field, Effects of Electric Fields on Structure and Reactivity is the first book on this exciting topic. Starting with an overview of the theory behind – and demonstrations of the effect of – electric fields on structure and reactivity, this accessible reference work aims to encourage those new to the field to consider harnessing these effects in their own work. Covering applications and recent theoretical developments, it is a useful resource for theoretical chemists and experimentalists alike.

This is the perfect complement to "Chemical Bonding - Across the Periodic Table" by the same editors, who are two of the top scientists working on this topic, each with extensive experience and important connections within the community.The resulting book is a unique overview of the different approaches used for describing a chemical bond, including molecular-orbital based, valence-bond based, ELF, AIM and density-functional based methods. It takes into account the many developments that have taken place in the field over the past few decades due to the rapid advances in quantum chemical models and faster computers.

A unique overview of the different kinds of chemical bonds that can be found in the periodic table, from the main-group elements to transition elements, lanthanides and actinides. It takes into account the many developments that have taken place in the field over the past few decades due to the rapid advances in quantum chemical models and faster computers. This is the perfect complement to "Chemical Bonding - Fundamentals and Models" by the same editors, who are two of the top scientists working on this topic, each with extensive experience and important connections within the community.