Inaccurate conformational energies still hinder crystal structure prediction in flexible organic molecules

C Greenwell, GJO Beran - Crystal Growth & Design, 2020 - ACS Publications
Crystal structure prediction driven by density functional theory has become an increasingly
useful tool for the pharmaceutical industry and others interested in understanding and …

Reliable and practical computational description of molecular crystal polymorphs

J Hoja, HY Ko, MA Neumann, R Car, RA DiStasio Jr… - Science …, 2019 - science.org
Reliable prediction of the polymorphic energy landscape of a molecular crystal would yield
profound insight into drug development in terms of the existence and likelihood of late …

Overcoming the difficulties of predicting conformational polymorph energetics in molecular crystals via correlated wavefunction methods

C Greenwell, JL McKinley, P Zhang, Q Zeng, G Sun… - Chemical …, 2020 - pubs.rsc.org
Molecular crystal structure prediction is increasingly being applied to study the solid form
landscapes of larger, more flexible pharmaceutical molecules. Despite many successes in …

Prediction of the relative free energies of drug polymorphs above zero kelvin

M Yang, E Dybeck, G Sun, C Peng… - Crystal Growth & …, 2020 - ACS Publications
Crystal structure prediction (CSP) calculations can reduce risk and improve efficiency during
drug development. Traditionally, CSP calculations use lattice energies computed through …

Combined crystal structure prediction and high-pressure crystallization in rational pharmaceutical polymorph screening

MA Neumann, J Van De Streek, FPA Fabbiani… - Nature …, 2015 - nature.com
Organic molecules, such as pharmaceuticals, agro-chemicals and pigments, frequently form
several crystal polymorphs with different physicochemical properties. Finding polymorphs …

[HTML][HTML] Prediction of the crystal structures of axitinib, a polymorphic pharmaceutical molecule

M Vasileiadis, CC Pantelides, CS Adjiman - Chemical Engineering Science, 2015 - Elsevier
Organic molecules can crystallize in multiple structures or polymorphs, yielding crystals with
very different physical and mechanical properties. The prediction of the polymorphs that may …

Crystal-energy landscapes of active pharmaceutical ingredients using composite approaches

LM LeBlanc, ER Johnson - CrystEngComm, 2019 - pubs.rsc.org
The crystal structure prediction (CSP) of organic molecular solids remains challenging, as
the demand to predict more complex crystal structures increases. Low-cost (semi-) empirical …

Crystal structure prediction of flexible pharmaceutical-like molecules: density functional tight-binding as an intermediate optimisation method and for free energy …

L Iuzzolino, P McCabe, SL Price… - Faraday …, 2018 - pubs.rsc.org
Successful methodologies for theoretical crystal structure prediction (CSP) on flexible
pharmaceutical-like organic molecules explore the lattice energy surface to find a set of …

Predicting crystal structures of organic compounds

SL Price - Chemical Society Reviews, 2014 - pubs.rsc.org
Currently, organic crystal structure prediction (CSP) methods are based on searching for the
most thermodynamically stable crystal structure, making various approximations in …

Computed crystal energy landscapes for understanding and predicting organic crystal structures and polymorphism

SSL Price - Accounts of chemical research, 2009 - ACS Publications
The phenomenon of polymorphism, the ability of a molecule to adopt more than one crystal
structure, is a well-established property of crystalline solids. The possible variations in …