Computational Chemistry Day (CCD) is an international one-day scientific conference held in Zagreb, Croatia, dedicated to researchers who develop and apply methods in computational chemistry. The meeting welcomes a broad spectrum of approaches—from molecular mechanics to advanced quantum chemical methods—and embraces both static and dynamic studies in ordered and disordered systems. Topics span a wide range of research areas, including reaction mechanisms, the design of new drugs and materials, and the interpretation of physico-chemical properties.
The conference is primarily aimed at the local scientific community, while actively seeking to engage distinguished speakers from the wider region in order to bring fresh perspectives and highlight recent advances beyond the local level. In this way, the event fosters both accessibility and excellence, creating opportunities for meaningful exchange with prominent researchers.
As a low-budget, no-registration-fee event, participation is intentionally simple and inclusive, requiring only prior attendance registration. The format—a focused single-day meeting held close to participants’ workplaces yet removed from everyday obligations—encourages lively interaction and the development of a cohesive and informal community of computational chemists.
Beyond presenting research results, CCD promotes collaboration and networking across all career stages and areas of expertise. The program aims to include discussions on tools and best practices, as well as workshops, crash courses, and lectures on broader or interdisciplinary topics. Students and early-career researchers are especially encouraged to attend and actively participate.
Organization
The conference is organized by the Ruđer Bošković Institute (RBI), the Department of Chemistry, Faculty of Science (DC-FS), and the Faculty of Pharmacy and Biochemistry (FPB) of the University in Zagreb, the Croatian Chemical Society and the University of Zagreb University Computing Centre SRCE.
The conference was organized for the first time in 2018 and has been held once a year since then (with a break due to the COVID-19 pandemic). Scientific results are presented in the form of lectures and posters. The working language of the conference is English.
There is no registration fee for the conference. The registration for CCD 2026 is now closed because the lecture room capacity has been reached. Those interested to participate anyway should contact the organizer (compchemday@gmail.com).
Organizing committee
Darko Babić (RBI, Zagreb), Danijela Barić (RBI, Zagreb), Branimir Bertoša (UniZg-FS, Zagreb), Marko Cvitaš (UniZg-FS, Zagreb), Ines Despotović (RBI, Zagreb), Luca Grisanti (CNR-IOM, Trieste), Emir Imamagić (SRCE, Zagreb), Ivan Kodrin (UniZg-FS, Zagreb), Boris Kovačević (RBI, Zagreb), Janez Mavri (NIC, Ljubljana), Tomislav Piteša (RBI, Zagreb), Marin Sapunar (RBI, Zagreb), Višnja Stepanić (Head of the Organizing Committee, RBI, Zagreb), Davor Šakić (UniZg-FPB, Zagreb), Tana Tandarić (RBI, Zagreb), Mario Vazdar (UCT, Prague), Robert Vianello (RBI, Zagreb) and Valerije Vrček (UniZg-FPB, Zagreb).
Local organizing team: Dea Demeter, Tea Frey, Matej Kožić, Karla Krstinić, Matija Modrušan, Jelena Pavić, Marina Punčec, Tamara Rinkovec, Katarina Šestić and Marta Vukić.
Organizing institutions
