Report on the sixth blind test of organic crystal structure prediction methods

Anthony M. Reilly, Richard I. Cooper, Claire S. Adjiman, Saswata Bhattacharya, A. Daniel Boese, Jan Gerit Brandenburg, Peter J. Bygrave, Rita Bylsma, Josh E. Campbell, Roberto Car, David H. Case, Renu Chadha, Jason C. Cole, Katherine Cosburn, Herma M. Cuppen, Farren Curtis, Graeme M. Day, Robert A. DiStasio, Alexander Dzyabchenko, Bouke P. Van EijckDennis M. Elking, Joost A. Van Den Ende, Julio C. Facelli, Marta B. Ferraro, Laszlo Fusti-Molnar, Christina Anna Gatsiou, Thomas S. Gee, René De Gelder, Luca M. Ghiringhelli, Hitoshi Goto, Stefan Grimme, Rui Guo, Detlef W.M. Hofmann, Johannes Hoja, Rebecca K. Hylton, Luca Iuzzolino, Wojciech Jankiewicz, Daniël T. De Jong, John Kendrick, Niek J.J. De Klerk, Hsin Yu Ko, Liudmila N. Kuleshova, Xiayue Li, Sanjaya Lohani, Frank J.J. Leusen, Albert M. Lund, Jian Lv, Yanming Ma, Noa Marom, Artëm E. Masunov, Patrick McCabe, David P. McMahon, Hugo Meekes, Michael P. Metz, Alston J. Misquitta, Sharmarke Mohamed, Bartomeu Monserrat, Richard J. Needs, Marcus A. Neumann, Jonas Nyman, Shigeaki Obata, Harald Oberhofer, Artem R. Oganov, Anita M. Orendt, Gabriel I. Pagola, Constantinos C. Pantelides, Chris J. Pickard, Rafal Podeszwa, Louise S. Price, Sarah L. Price, Angeles Pulido, Murray G. Read, Karsten Reuter, Elia Schneider, Christoph Schober, Gregory P. Shields, Pawanpreet Singh, Isaac J. Sugden, Krzysztof Szalewicz, Christopher R. Taylor, Alexandre Tkatchenko, Mark E. Tuckerman, Francesca Vacarro, Manolis Vasileiadis, Alvaro Vazquez-Mayagoitia, Leslie Vogt, Yanchao Wang, Rona E. Watson, Gilles A. De Wijs, Jack Yang, Qiang Zhu, Colin R. Groom

Research output: Contribution to journalArticlepeer-review


The sixth blind test of organic crystal structure prediction (CSP) methods has been held, with five target systems: a small nearly rigid molecule, a polymorphic former drug candidate, a chloride salt hydrate, a co-crystal and a bulky flexible molecule. This blind test has seen substantial growth in the number of participants, with the broad range of prediction methods giving a unique insight into the state of the art in the field. Significant progress has been seen in treating flexible molecules, usage of hierarchical approaches to ranking structures, the application of density-functional approximations, and the establishment of new workflows and 'best practices' for performing CSP calculations. All of the targets, apart from a single potentially disordered Z′ = 2 polymorph of the drug candidate, were predicted by at least one submission. Despite many remaining challenges, it is clear that CSP methods are becoming more applicable to a wider range of real systems, including salts, hydrates and larger flexible molecules. The results also highlight the potential for CSP calculations to complement and augment experimental studies of organic solid forms.The results of the sixth blind test of organic crystal structure prediction methods are presented and discussed, highlighting progress for salts, hydrates and bulky flexible molecules, as well as on-going challenges.

Original languageEnglish (US)
Pages (from-to)439-459
Number of pages21
JournalActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials
Issue number4
StatePublished - Aug 1 2016


  • Cambridge Structural Database
  • crystal structure prediction
  • lattice energies
  • polymorphism

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Metals and Alloys
  • Materials Chemistry


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