CHAPTER 2: High Pressure Crystallography: Elucidating the Role of Intermolecular Interactions in Crystals of Organic and Coordination Compounds

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Аннотация

Intermolecular interactions can be probed by varying pressure. The structures formed under selected temperature and pressure conditions, and the structural changes resulting from temperature and pressure variation, can provide clues to understanding the structure-forming role of various types of hydrogen bonds, stacking interactions, van der Waals interactions, etc. One can consider the following possible types of experiments. (1) Measuring the anisotropy of structural strain and the absolute value of compressibility. This can give valuable information on the absolute and relative strengths of various types of intermolecular interactions. Fine-tuning interactions by continuously changing intermolecular distances provides a unique possibility to quantitatively study structure-property relationships. (2) Following the structural transformations that are induced by increasing pressure. One can compare the pressure response of different polymorphs of the same compound, of chiral and racemic counterparts, of single- and multi-component crystals containing the same or related chemical species, or of selected series of compounds. The compression-decompression protocol - in particular the rate of increasing and decreasing pressure - the temperature, the choice of hydrostatic fluid, and the presence of other phases as potential seeds can influence the outcome of the transformation. (3) Crystallization of solids at high pressure. One can consider: (a) crystallization of solids originally dissolved in a liquid and (b) crystallization of compounds that are fluid at ambient pressure. (4) The effect of pressure on chemical transformations induced by temperature or light and chemical reactions induced by compression. These experiments contribute towards the understanding of the role of intermolecular interactions in solid-state reactivity.

Язык оригиналаанглийский
Название основной публикацииUnderstanding Intermolecular Interactions in the Solid State
Подзаголовок основной публикацииApproaches and Techniques
РедакторыD Chopra
ИздательRoyal Society of Chemistry
Страницы32-97
Число страниц66
Издание26
ISBN (электронное издание)9781788010795
ISBN (печатное издание)978-1-78801-079-5
DOI
СостояниеОпубликовано - 1 янв 2019

Серия публикаций

НазваниеMonographs in Supramolecular Chemistry
Номер26
Том2019-January
ISSN (печатное издание)1368-8642
ISSN (электронное издание)2041-7144

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