| World Association of Theoretical and Computational Chemists | |
| Abbreviation: | WATOC |
| Formation: | 1982 |
| Purpose: | promoting the field of theoretical and computational chemistry |
| Leader Title: | President |
| Leader Name: | Peter Gill |
The World Association of Theoretical and Computational Chemists (WATOC) is a scholarly association founded in 1982 "in order to encourage the development and application of theoretical methods" in chemistry, particularly theoretical chemistry and computational chemistry. It was originally called the World Association of Theoretical Organic Chemists, but was later renamed the World Association of Theoretically Oriented Chemists, and in 2005 renamed once more to the World Association of Theoretical and Computational Chemists.
WATOC organizes a triennial world congress with over 1,000 participants in last years.
| Name | Date | Year | City | Country | Organizer | |||
|---|---|---|---|---|---|---|---|---|
| 1 | WATOC-1987 | August 12–18 | 1987 | Budapest | Hungary | Imre Csizmadia | ||
| 2 | WATOC-1990 | July 8–14 | 1990 | Toronto | Canada | Imre Csizmadia | ||
| 3 | WATOC-1993 | July 18–25 | 1993 | Toyohashi | Japan | Keiji Morokuma | ||
| 4 | WATOC-1996 | July 7–12 | 1996 | Jerusalem | Israel | Amiram Goldblum | ||
| 5 | WATOC-1999 | August 1–6 | 1999 | London | UK | Mike Robb Henry Rzepa | ||
| 6 | WATOC-2002 | August 6–9 | 2002 | Lugano | Switzerland | Hans-Peter Lüthi | ||
| 7 | WATOC-2005 | January 16–21 | 2005 | Cape Town | South Africa | Kevin Naidoo | ||
| 8 | WATOC-2008 | September 14–19 | 2008 | Sydney | Australia | Leo Radom | ||
| 9 | WATOC-2011 | July 17–22 | 2011 | Santiago de Compostela | Spain | Manuel Yáñez Otilia Mó | ||
| 10 | WATOC-2014 | October 5–10 | 2014 | Santiago de Chile | Chile | Alejandro Toro-Labbé | ||
| 11 | WATOC-2017 | August 27 – September 1 | 2017 | Munich | Germany | Christian Ochsenfeld | ||
| 12 | WATOC-2020 | August 16 – 21 | 2020 | Vancouver | Canada | Russell J. Boyd | ||
| 13 | WATOC-2025 | June 22 – 27 | 2025 | Oslo | Norway | Trygve Helgaker | ||
See main article: Schrödinger Medal. The association awards two yearly medals: the Schrödinger Medal to one "outstanding theoretical and computational chemist", and the Dirac Medal to one "outstanding theoretical and computational chemist under the age of 40".
Presidents of WATOC:
| Name | First year | Last year | |||
|---|---|---|---|---|---|
| 1 | Imre Gyula Csizmadia | 1987 | 1990 | ||
| 2 | Paul von Rague Schleyer | 1990 | 1996 | ||
| 3 | Henry F. Schaefer, III | 1996 | 2005 | ||
| 4 | Leo Radom | 2005 | 2011 | ||
| 5 | Walter Thiel | 2011 | 2017 | ||
| 6 | Peter Gill | 2017 | 2025 | ||