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| Author | : Dominik Kurzydlowsk |
| Publisher | : MDPI |
| Total Pages | : 128 |
| Release | : 2019-10-25 |
| Genre | : Science |
| ISBN | : 3039216708 |
Download First-Principles Prediction of Structures and Properties in Crystals Book in PDF, ePub and Kindle
The term “first-principles calculations” is a synonym for the numerical determination of the electronic structure of atoms, molecules, clusters, or materials from ‘first principles’, i.e., without any approximations to the underlying quantum-mechanical equations. Although numerous approximate approaches have been developed for small molecular systems since the late 1920s, it was not until the advent of the density functional theory (DFT) in the 1960s that accurate “first-principles” calculations could be conducted for crystalline materials. The rapid development of this method over the past two decades allowed it to evolve from an explanatory to a truly predictive tool. Yet, challenges remain: complex chemical compositions, variable external conditions (such as pressure), defects, or properties that rely on collective excitations—all represent computational and/or methodological bottlenecks. This Special Issue comprises a collection of papers that use DFT to tackle some of these challenges and thus highlight what can (and cannot yet) be achieved using first-principles calculations of crystals.
| Author | : Dominik Kurzydlowski |
| Publisher | : |
| Total Pages | : 1 |
| Release | : 2019 |
| Genre | : Electronic books |
| ISBN | : 9783039216710 |
Download First-Principles Prediction of Structures and Properties in Crystals Book in PDF, ePub and Kindle
The term "first-principles calculations" is a synonym for the numerical determination of the electronic structure of atoms, molecules, clusters, or materials from 'first principles', i.e., without any approximations to the underlying quantum-mechanical equations. Although numerous approximate approaches have been developed for small molecular systems since the late 1920s, it was not until the advent of the density functional theory (DFT) in the 1960s that accurate "first-principles" calculations could be conducted for crystalline materials. The rapid development of this method over the past two decades allowed it to evolve from an explanatory to a truly predictive tool. Yet, challenges remain: complex chemical compositions, variable external conditions (such as pressure), defects, or properties that rely on collective excitations-all represent computational and/or methodological bottlenecks. This Special Issue comprises a collection of papers that use DFT to tackle some of these challenges and thus highlight what can (and cannot yet) be achieved using first-principles calculations of crystals.
| Author | : Royal Society of Chemistry |
| Publisher | : Faraday Discussions |
| Total Pages | : 668 |
| Release | : 2018 |
| Genre | : Crystal growth |
| ISBN | : 9781788011709 |
Download Methods and Applications of Crystal Structure Prediction Book in PDF, ePub and Kindle
This volume gathers key researchers representing the full scientific scope of the crystal structure prediction.
| Author | : |
| Publisher | : |
| Total Pages | : 6 |
| Release | : 2007 |
| Genre | : |
| ISBN | : |
Download Predictions of Crystal Structures from First Principles Book in PDF, ePub and Kindle
A recently developed method denoted as SAPT(DFT), which applies symmetry-adapted perturbation theory (SAPT) based on Kohn-Sham orbitals and orbital energies and includes the dispersion component obtained using frequency-dependent density susceptibilities from density functional theory (DFT), has been shown to provide as accurate interaction energies as high-level wave function-based methods. At the same time, the former calculations can be performed at a greatly reduced computational cost compared to the latter, in fact, in a time comparable to supermolecular DFT calculations. The SAPT(DFT) method is particularly important for systems with a dominant dispersion component since the supermolecular DFT approach fails completely in this case. SAPT(DFT) was used to compute the interaction potential for the RDX dimer. This potential was applied to predictions of the properties of the RDX crystal in molecular dynamics simulations. The fully ab initio calculated properties are in excellent agreement with experiment and the predictions are even slightly better than achieved by empirical potentials fitted to the crystal experimental data.
| Author | : Johan Wouters |
| Publisher | : Royal Society of Chemistry |
| Total Pages | : 407 |
| Release | : 2011-11-04 |
| Genre | : Medical |
| ISBN | : 1849733503 |
Download Pharmaceutical Salts and Co-crystals Book in PDF, ePub and Kindle
From crystal structure prediction to totally empirical screening, the quest for new crystal forms has become one of the most challenging issues in the solid state science and particularly in the pharmaceutical world. In this context, multi-component crystalline materials like co-crystals have received renewed interest as they offer the prospect of optimized physical properties. As illustrated in this first book_ entirely dedicated to this emerging class of pharmaceutical compounds_ the outcome of such endeavours into crystal engineering have demonstrated clear impacts on production, marketing and intellectual property protection of active pharmaceutical ingredients (APIs). Indeed, co-crystallization influences relevant physico-chemical parameters (such as solubility, dissolution rate, chemical stability, melting point, hygroscopicity, à) and often offers solids with properties superior to those of the free drug. Combining both reports of the latest research and comprehensive overviews of basic principles, with contributions from selected experts in both academia and industry, this unique book is an essential reference, ideal for pharmaceutical development scientists and graduate students in pharmaceutical science.
| Author | : David J. Fisher |
| Publisher | : Materials Research Forum LLC |
| Total Pages | : 112 |
| Release | : 2022-08-05 |
| Genre | : Technology & Engineering |
| ISBN | : 164490201X |
Download Data-Mining and Intermetallic Property-Prediction Book in PDF, ePub and Kindle
Using a computer-aided data mining approach and available experimental data bases, the author discusses the prediction of the structures and properties of intermetallic alloy compounds. The book references 252 original resources with their direct web links for in-depth reading. Keywords: Data-Mining, Intermetallic Compounds, Structure-Mapping, Clustering Methods, Free Energy, Energy Landscapes of Compounds, Stable Groupings of Atoms, Intermetallic Phases, Crystal Unit Cell Size, Platonic Solids, Symmetries, Stoichiometries, Stability Fields.
| Author | : |
| Publisher | : |
| Total Pages | : 370 |
| Release | : 1985 |
| Genre | : Nuclear energy |
| ISBN | : |
Download LBL Research Review Book in PDF, ePub and Kindle
| Author | : Sule Atahan-Evrenk |
| Publisher | : Springer |
| Total Pages | : 299 |
| Release | : 2014-05-06 |
| Genre | : Science |
| ISBN | : 331905774X |
Download Prediction and Calculation of Crystal Structures Book in PDF, ePub and Kindle
The series Topics in Current Chemistry presents critical reviews of the present and future trends in modern chemical research. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field. Review articles for the individual volumes are invited by the volume editors. Readership: research chemists at universities or in industry, graduate students.
| Author | : Artem R. Oganov |
| Publisher | : John Wiley & Sons |
| Total Pages | : 378 |
| Release | : 2011-08-04 |
| Genre | : Science |
| ISBN | : 352764377X |
Download Modern Methods of Crystal Structure Prediction Book in PDF, ePub and Kindle
Gathering leading specialists in the field of structure prediction, this book provides a unique view of this complex and rapidly developing field, reflecting the numerous viewpoints of the different authors. A summary of the major achievements over the last few years and of the challenges still remaining makes this monograph very timely.
| Author | : Elena Boldyreva |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 603 |
| Release | : 2010-08-20 |
| Genre | : Science |
| ISBN | : 9048192579 |
Download High-Pressure Crystallography Book in PDF, ePub and Kindle
This unique book is devoted to the theme of crystallographic studies at high pressure. It places emphasis on the phenomena characteristic to the compressed state of matter, as well as experimental and theoretical techniques, used to study these phenomena.
