Pharmaceutical Salts and Co-crystals
Pharmaceutical Salts and Co-crystals

Author: Johan Wouters

Publisher: Royal Society of Chemistry

Published: 2011-11-04

Total Pages: 407

ISBN-13: 1849733503

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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.

Co-crystals
Co-crystals

Author: Christer B Aakeröy

Publisher: Royal Society of Chemistry

Published: 2018-07-16

Total Pages: 354

ISBN-13: 1788011155

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This book combines co-crystal applications of commercial and practical interest from diverse fields into a single volume. It also examines effective structural design of co-crystals, and provides insights into practical synthesis and characterization techniques.

Co-crystals
Co-crystals

Author: Christer B Aakeröy

Publisher: Royal Society of Chemistry

Published: 2018-07-13

Total Pages: 354

ISBN-13: 1788014898

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Multi-component crystalline systems or co-crystals have received tremendous attention from academia and industry alike in the past decade. Applications of co-crystals are varied and are likely to positively impact a wide range of industries dealing with molecular solids. Co-crystallization has been used to improve the properties and performance of materials from pharmaceuticals to energetic materials, as well as for separation of compounds. This book combines co-crystal applications of commercial and practical interest from diverse fields in to a single volume. It also examines effective structural design of co-crystals, and provides insights into practical synthesis and characterization techniques. Providing a useful resource for postgraduate students new to applied co-crystal research and crystal engineering, it will also be of interest to established researchers in academia or industry.

Multi-Component Crystals
Multi-Component Crystals

Author: Edward Tiekink

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2017-11-20

Total Pages: 421

ISBN-13: 3110463792

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In this volume, contributions covering the theoretical and practical aspects of multicomponent crystals provide a timely and contemporary overview of the state-of-the art of this vital aspect of crystal engineering/materials science. With a solid foundation in fundamentals, multi-component crystals can be formed, for example, to enhance pharmaceutical properties of drugs, for the specific control of optical responses to external stimuli and to assemble molecules to allow chemical reactions that are generally intractable following conventional methods. Contents Pharmaceutical co-crystals: crystal engineering and applications Pharmaceutical multi-component crystals: improving the efficacy of anti-tuberculous agents Qualitative and quantitative crystal engineering of multi-functional co-crystals Control of photochromism in N-salicylideneaniline by crystal engineering Quinoline derivatives for multi-component crystals: principles and applications N-oxides in multi-component crystals and in bottom-up synthesis and applications Multi-component crystals and non-ambient conditions Co-crystals for solid-state reactivity and thermal expansion Solution co-crystallisation and its applications The salt-co-crystal continuum in halogen-bonded systems Large horizontal displacements of benzene-benzene stacking interactions in co-crystals Simultaneous halogen and hydrogen bonding to carbonyl and thiocarbonylfunctionality Crystal chemistry of the isomeric N,N’-bis(pyridin-n-ylmethyl)-ethanediamides, n = 2, 3 or 4 Solute・solvent interactions mediated by main group element (lone-pair)・・・π(aryl) interactions

Crystals
Crystals

Author: Jennie Harding

Publisher:

Published: 2019-10

Total Pages: 323

ISBN-13: 1782407693

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A beautiful crystal color directory and crystal gallery profile over one hundred of these extraordinary works of nature. Detailed information on the effect each crystal has on mind, body, and spirit is combined with practical advice on crystal healing

Polymorphism in the Pharmaceutical Industry
Polymorphism in the Pharmaceutical Industry

Author: Rolf Hilfiker

Publisher: John Wiley & Sons

Published: 2019-01-04

Total Pages: 645

ISBN-13: 3527697853

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"Polymorphism in the Pharmaceutical Industry - Solid Form and Drug Development" highlights the relevance of polymorphism in modern pharmaceutical chemistry, with a focus on quality by design (QbD) concepts. It covers all important issues by way of case studies, ranging from properties and crystallization, via thermodynamics, analytics and theoretical modelling right up to patent issues. As such, the book underscores the importance of solid-state chemistry within chemical and pharmaceutical development. It emphasizes why solid-state issues are important, the approaches needed to avoid problems and the opportunities offered by solid-state properties. The authors include true polymorphs as well as solvates and hydrates, while providing information on physicochemical properties, crystallization thermodynamics, quantum-mechanical modelling, and up-scaling. Important analytical tools to characterize solid-state forms and to quantify mixtures are summarized, and case studies on solid-state development processes in industry are also provided. Written by acknowledged experts in the field, this is a high-quality reference for researchers, project managers and quality assurance managers in pharmaceutical, agrochemical and fine chemical companies as well as for academics and newcomers to organic solid-state chemistry.

Pharmaceutical Salts and Co-crystals
Pharmaceutical Salts and Co-crystals

Author: Johan Wouters

Publisher: Royal Society of Chemistry

Published: 2011

Total Pages: 407

ISBN-13: 1849731586

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This book covers the hot topic of pharmaceutical salts and co-crystals focusing on the following essential aspects: an overview of fundamental aspects on salts and co-crystals, racemic resolution via diastereomer separation, optimization of relevant physico-chemical parameters, and strengthening of intellectual property.

Phase Transitions in Ferroelastic and Co-elastic Crystals
Phase Transitions in Ferroelastic and Co-elastic Crystals

Author: E. K. Salje

Publisher: Cambridge University Press

Published: 1993-04-22

Total Pages: 304

ISBN-13: 9780521429368

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This textbook describes the fundamental principles of structural phase transitions in materials in an easily understandable form, suitable for both undergraduate and graduate students.

Stones of the New Consciousness
Stones of the New Consciousness

Author: Robert Simmons

Publisher: North Atlantic Books

Published: 2009

Total Pages: 321

ISBN-13: 1556438117

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Stones of the New Consciousness begins with a new approach to meditation with stones, and to the possibility of conscious relationship with the spiritual beings who express themselves in our world as crystals and minerals. This beautifully designed book examines the most important stones that help accelerate and enhance human evolution. Each entry is illustrated with color photos of exceptional examples. The stones include Moldavite, the extraterrestrial amorphous crystal; Nuummite, the oldest gemstone on Earth; and Circle Stones, the highly energetic Flint found in crop circle formations. Other featured rarities include Nirvana Quartz from the Himalayas and high-vibrational Natrolite from the emerald mines of Russia. Author Robert Simmons includes historical and mythological references for each stone, positing that the fabled Stone of the Holy Grail and the Philosopher's Stone of the alchemists may have physical counterparts among the materials discussed. Simmons presents practices for deepening one's awareness of the stones' gifts--from expanding one's consciousness, to healing, to fulfilling one's personal and collective destiny. While emphasizing direct contact with stones, the book also explores crystal energy tools, energy environments, and applications such as stone elixirs and essences that can aid anyone on a spiritual path.

Molecular Networks
Molecular Networks

Author: Mir Wais Hosseini

Publisher: Springer Science & Business Media

Published: 2009-06-29

Total Pages: 173

ISBN-13: 364201366X

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In the future, many modern materials will be increasingly based on the assembly of preformed molecular entities. Their structural characteristics and functional prop- ties will be programmed at the molecular level and their formation as a completed entity will be achieved by self-assembly processes. This in essence is a bottom-up approach and its success will require a deep understanding not only of the chemistry of intermolecular interactions and associations but also of self-assembly processes in the condensed phase. Among various interesting innovations brought about by the development of supramolecular chemistry, supramolecular synthesis is a part- ularly powerful approach for the design and generation of molecular architectures displaying both structural and functional complexity. The combination of mol- ular synthesis (which allows chemists to design and prepare extremely sophis- cated biotic and abiotic molecules through the interconnection of atoms or group of atoms by strong covalent bonds) and supramolecular synthesis (which orch- trates the association of molecules by recognition processes through the use of weak and reversible interactions) opens up endless structural and functional possibilities. Following the perceptive observation by Dunitz that "A crystal is, in a sense, the supramolecule par excellence", molecular crystals may be seen as in'nite periodic architectures resulting from the interconnection of building blocks or tectons ca- ble of self-assembling through speci'c recognising events.