World Association of Theoretical and Computational Chemists

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.

Conferences

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

Awards

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".

Recipients of the Dirac Medal

Source: WATOC

List of presidents

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