Equilibrium Molecular Structures

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Equilibrium Molecular Structures

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Author : Jean Demaison
language : en
Publisher: CRC Press
Release Date : 2016-04-19

Equilibrium Molecular Structures written by Jean Demaison and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Science categories.

Molecular structure is the most basic information about a substance, determining most of its properties. Determination of accurate structures is hampered in that every method applies its own definition of "structure" and thus results from different sources can yield significantly different results. Sophisticated protocols exist to account for these

Accurate Structure Determination Of Free Molecules

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Author : Jean Demaison
language : en
Publisher: Springer Nature
Release Date : 2020-12-02

Accurate Structure Determination Of Free Molecules written by Jean Demaison and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-12-02 with Science categories.

This book presents a detailed look at experimental and computational techniques for accurate structure determination of free molecules. The most fundamental property of a molecule is its structure – it is a prerequisite for determining and understanding most other important properties of molecules. The determination of accurate structures is hampered by a myriad of factors, subjecting the collected data to non-negligible systematic errors. This book explains the origin of these errors and how to mitigate and even avoid them altogether. It features a detailed comparison of the different experimental and computation methods, explaining their interplay and the advantages of their combined use. Armed with this information, the reader will be able to choose the appropriate methods to determine – to a great degree of accuracy – the relevant molecular structure.

Molecular Structural Models Unveiled A Comprehensive Guide For Organic Chemistry

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Author : Pasquale De Marco
language : en
Publisher: Pasquale De Marco
Release Date : 2025-07-14

Molecular Structural Models Unveiled A Comprehensive Guide For Organic Chemistry written by Pasquale De Marco and has been published by Pasquale De Marco this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-07-14 with Science categories.

Embark on a captivating journey into the realm of molecular structures with "Molecular Structural Models Unveiled: A Comprehensive Guide for Organic Chemistry." This comprehensive guide unveils the intricate world of molecules, delving into their shapes, interactions, properties, and reactions. Discover the fundamental principles that govern the behavior of matter at the molecular level. Unravel the secrets of molecular bonding, exploring the forces that hold atoms together and dictate their behavior. Delve into the fascinating world of molecular reactions, witnessing the dynamic transformations that shape our world. Uncover the underlying principles that govern the behavior of molecules in solutions, exploring the delicate balance of intermolecular forces and the properties that emerge from these interactions. Delve into the realm of acids and bases, unraveling the concepts of proton transfer and exploring their profound implications in chemical reactions. Discover the fascinating field of chemical thermodynamics, where energy flow and equilibrium dictate the course of chemical transformations. Embark on an adventure through the world of chemical kinetics, unravelling the mysteries of reaction rates and mechanisms. Witness the elegance of catalysis, where substances accelerate reactions, orchestrating molecular transformations with remarkable efficiency. Finally, immerse yourself in the realm of biochemistry, where the intricate interplay of molecules gives rise to the wonders of life itself. With clarity and precision, this book serves as your gateway to unlocking the secrets of molecular structure, unveiling the hidden forces that shape the world around us. Explore the profound impact of molecular interactions on our lives and the universe we inhabit, embarking on a journey through the pages of this comprehensive guide to discover the elegance and complexity of the molecular world. If you like this book, write a review!

Molecular Structure By Diffraction Methods

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Author : G. A. Sim
language : en
Publisher: Royal Society of Chemistry
Release Date : 1973

Molecular Structure By Diffraction Methods written by G. A. Sim and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Diffraction categories.

Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume.

Atomic Hypothesis And The Concept Of Molecular Structure

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Author : Zvonimir B. Maksic
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09

Atomic Hypothesis And The Concept Of Molecular Structure written by Zvonimir B. Maksic and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.

"Imagination and shrewd guesswork are powerful instruments for acquiring scientific knowledge . . . " 1. H. van't Hoff The last decades have witnessed a rapid growth of quantum chemistry and a tremendous increase in the number of very accurate ab initio calculations of the electronic structure of molecules yielding results of admirable accuracy. This dramatic progress has opened a new stage in the quantum mechanical description of matter at the molecular level. In the first place, highly accurate results provide severe tests of the quantum mecha nics. Secondly, modern quantitative computational ab initio methods can be synergetically combined with various experimen tal techniques thus enabling precise numerical characterization of molecular properties better than ever anticipated earlier. However, the role of theory is not exhausted in disclosing the fundamental laws of Nature and production of ever increasing sets of data of high accuracy. It has to provide additionally a means of systematization, recognition of regularities, and ratio nalization of the myriads of established facts avoiding in this way complete chaos. Additional problems are represented by molecular wavefunctions provided by the modern high-level computational quantum chemistry methods. They involve, in principle, all the information on molecular system, but they are so immensely complex that can not be immediately understood in simple and physically meaningful terms. Both of these aspects, categorization and interpretation, call for conceptual models which should be preferably pictorial, transparent, intuitively appealing and well-founded, being sometimes useful for semi quantitative purposes.

Rotational Spectra And Molecular Structure

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Author : James E. Wollrab
language : en
Publisher: Academic Press
Release Date : 2013-10-22

Rotational Spectra And Molecular Structure written by James E. Wollrab and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.

Physical Chemistry, A Series of Monographs: Rotational Spectra and Molecular Structure covers the energy levels and rotational transitions. This book is divided into nine chapters that evaluate the rigid asymmetric top molecules and the nuclear spin statistics for asymmetric tops. Some of the topics covered in the book are the asymmetric rotor functions; rotational transition intensities; classes of molecules; nuclear spin statistics for linear molecules and symmetric tops; and classical appearance of centrifugal and coriolis forces. Other chapters deal with the energy levels and effects of centrifugal distortion, as well as the internuclear distance and moments of inertia. The discussion then shifts to the coriolis coupling effects on rotational constants and the perturbation treatment of vibration-rotational Hamiltonian. The last chapter is devoted to the examination of origin of the quadrupole interaction. The book can provide useful information to chemists, physicists, electrical engineers, students, and researchers.

Structures And Conformations Of Non Rigid Molecules

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Author : J. Laane
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Structures And Conformations Of Non Rigid Molecules written by J. Laane and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

From the beginnings of modern chemistry, molecular structure has been a lively area of research and speculation. For more than half a century spectroscopy and other methods have been available to characterize the structures and shapes of molecules, particularly those that are rigid. However, most molecules are at least to some degree non-rigid and this non-rigidity plays an important role in such diverse areas as biological activity, energy transfer, and chemical reactivity. In addition, the large-amplitude vibrations present in non-rigid molecules give rise to unusual low-energy vibrational level patterns which have a dramatic effect on the thermodynamic properties of these systems. Only in recent years has a coherent picture of the energetics and dynamics of the conformational changes inherent in non-rigid (and semi-rigid) molecules begun to emerge. Advances have been made in a number of different experimental areas: vibrational (infrared and Raman) spectroscopy, rotational (microwave) spectroscopy, electron diffraction, and, most recently, laser techniques probing both the ground and excited electronic states. Theoretically, the proliferation of powerful computers coupled with scientific insight has allowed both empirical and ab initio methods to increase our understanding of the forces responsible for the structures and energies of non-rigid systems. The development of theory (group theoretical methods and potential energy surfaces) to understand the unique characteristics of the spectra of these floppy molecules has also been necessary to reach our present level of understanding. The thirty chapters in this volume contributed by the key speakers at the Workshop are divided over the various areas. Both vibrational and rotational spectroscopy have been effective at determining the potential energy surfaces for non-rigid molecules, often in a complementary manner. Recent laser fluorescence work has extended these types of studies to electronic excited states. Electronic diffraction methods provide radial distribution functions from which both molecular structures and compositions of conformational mixtures can be found. Ab initio calculations have progressed substantially over the past few years, and, when carried out at a sufficiently high level, can accurately reproduce (or predict ahead of time) experimental findings. Much of the controversy of the ARW related to the question of when an ab initio is reliable. Since the computer programs are readily available, many poor calculations have been carried out. However, excellent results can be obtained from computations when properly done. A similar situation exists for experimental analyses. The complexities of non-rigid molecules are many, but major strides have been taken to understand their structures and conformational processes.

Advances In Molecular Structure Research

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Author :
language : en
Publisher: Elsevier
Release Date : 1997-03-08

Advances In Molecular Structure Research written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-03-08 with Science categories.

Advances in Molecular Structure Research

Valency And Molecular Structure

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Author : E. Cartmell
language : en
Publisher: Butterworth-Heinemann
Release Date : 2013-10-22

Valency And Molecular Structure written by E. Cartmell and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.

Valency and Molecular Structure, Fourth Edition provides a comprehensive historical background and experimental foundations of theories and methods relating to valency and molecular structures. In this edition, the chapter on Bohr theory has been removed while some sections, such as structures of crystalline solids, have been expanded. Details of structures have also been revised and extended using the best available values for bond lengths and bond angles. Recent developments are mostly noted in the chapter on complex compounds, while a new chapter has been added to serve as an introduction to the spectroscopy of complex compounds. Other topics include the experimental foundation of the quantum theory; molecular-orbital method; ionic, hydrogen, and metallic bonds; structures of some simple inorganic compounds; and electronic spectra of transition-metal complexes. This publication is a useful reference for undergraduate students majoring in chemistry and other affiliated science subjects.

Problems In Structural Inorganic Chemistry

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Author : Wai-Kee Li
language : en
Publisher:
Release Date : 2019

Problems In Structural Inorganic Chemistry written by Wai-Kee Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.

This textbook offers over 400 problems and solutions in structural inorganic chemistry for senior undergraduates and beginning graduates. It is an updated companion text to Advanced Structural Inorganic Chemistry by the same authors. The new edition adds over 100 new problems and three new chapters on metal compounds and bioinorganic chemistry.