1. Glencroft, Guildford, Surrey, England
2. School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
3. Dipartimento di Chimica, Università degli Studi di Milano, Milano 20133, Italy
4. Samara Center for Theoretical Materials Science (SCTMS), Samara University, Samara 443011, Russia
5. School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
6. Centre for Supramolecular Chemistry Research, Department of Chemistry, University of Cape Town, Rondebosch 7701, Cape Town, South Africa
7. Department of Chemistry, UNIST, Ulsan 44919, Korea
8. Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-909, Brazil
9. Department of Applied Mathematics, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 2601, Australia
10. The Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB2 1EZ, United Kingdom
11. Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96, Gothenburg, Sweden