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Themed collection The effects of extreme conditions on molecular solids

13 items
Editorial

The effects of extreme conditions on molecular solids

Welcome to this themed issue of CrystEngComm entitled: ‘The effects of extreme conditions on molecular solids’.

Graphical abstract: The effects of extreme conditions on molecular solids
Communication

A structural exploration of anisole accessed through extreme crystallisation conditions

A novel high pressure polymorph of anisole has been discovered and investigated with respect to the known low temperature form.

Graphical abstract: A structural exploration of anisole accessed through extreme crystallisation conditions
Paper

Dielectric properties and the role of grain boundaries in polycrystalline tetracene at high pressures

Dielectric properties and the role of grain boundaries in polycrystalline tetracene under pressure were investigated using impedance and computational methods.

Graphical abstract: Dielectric properties and the role of grain boundaries in polycrystalline tetracene at high pressures
Paper

Structural investigation and compression of a co-crystal of indomethacin and saccharin

Indomethacin : saccharin cocrystal has been studied under high pressure conditions and the amide interactions compared with previous high pressure studies.

Graphical abstract: Structural investigation and compression of a co-crystal of indomethacin and saccharin
Open Access Paper

The high-pressure and low-temperature structural behaviour of 2,2,2-trifluoroethanol

Polymorphic crystal structures have been determined for 2,2,2-trifluoroethanol by using the in situ crystallography techniques of high pressure and cryo-cooling.

Graphical abstract: The high-pressure and low-temperature structural behaviour of 2,2,2-trifluoroethanol
Paper

Effect of pressure on slit channels in guanine sodium salt hydrate: a link to nucleobase intermolecular interactions

The crystal structure of a hydrate of the sodium salt of guanine (2Na+·C5H3N5O2−·7H2O) was studied at high pressure by single-crystal X-ray diffraction and Raman spectroscopy.

Graphical abstract: Effect of pressure on slit channels in guanine sodium salt hydrate: a link to nucleobase intermolecular interactions
Open Access Paper

High-pressure polymorphism in L-threonine between ambient pressure and 22 GPa

The amino acid L-threonine undergoes three phase transitions between ambient pressure and 22.3 GPa which modify both hydrogen bonding and the molecular conformation.

Graphical abstract: High-pressure polymorphism in l-threonine between ambient pressure and 22 GPa
Paper

Antisolvent addition at extreme conditions

Antisolvent addition at high pressure (0.8 GPa) allows crystallization and recovery to ambient pressures of metastable form II paracetamol.

Graphical abstract: Antisolvent addition at extreme conditions
Paper

High-pressure crystallisation studies of biodiesel and methyl stearate

The widespread use of biodiesel as a renewable fuel offers many potential advantages, but at the same time presents challenges for modern internal combustion engines, particularly for those that involve high-pressure injection of fuel into the combustion chamber.

Graphical abstract: High-pressure crystallisation studies of biodiesel and methyl stearate
Paper

Molybdenum and rhenium disulfide synthesis via high-pressure carbonate melt

A new method is shown for the crystallisation of molybdenum and rhenium disulfide from high pressure liquid carbonate flux. Crystal size ranges from 10s to 100s of micrometres.

Graphical abstract: Molybdenum and rhenium disulfide synthesis via high-pressure carbonate melt
Paper

Structure and reactivity of 2,4,6-tricyano-1,3,5-triazine under high-pressure conditions

2,4,6-Tricyano-1,3,5-triazine is an attractive precursor for the synthesis of extended layered and nanoporous carbon nitrides.

Graphical abstract: Structure and reactivity of 2,4,6-tricyano-1,3,5-triazine under high-pressure conditions
Paper

Effects of pressure on the structure and lattice dynamics of α-glycine: a combined experimental and theoretical study

This concomitant experimental and theoretical study provides a definitive EOS for α-glycine up to the record pressure of 50 GPa.

Graphical abstract: Effects of pressure on the structure and lattice dynamics of α-glycine: a combined experimental and theoretical study
Paper

Structural behaviour of OP-ROY at extreme conditions

A highly-flexible organic molecule, with numerous polymorphs at ambient conditions, shows remarkable metastability, resisting the effects of extreme pressure and temperature.

Graphical abstract: Structural behaviour of OP-ROY at extreme conditions
13 items

About this collection

This themed issue on ‘The effects of extreme conditions on molecular solids’ delves into the realm of high pressure and celebrates the advances that have been made over the past few years. The breadth of systems investigated in this issue demonstrate an increase in complexity as well as the advancements in techniques that have enabled this to occur.

Iain D. H. Oswald and Christine M. Beavers (Guest Editors)

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