Latest update: 23 September 2026
Winter School in Theoretical Chemistry 2026
Reaction Paths and Transition States
Helsinki, Mon 14 December - Thu 17 December 2026
Location
Address: Unioninkatu 40
Preliminary: The lectures will be held in the Metsätalo building (House of Forestry). The nearest metro station is Helsingin yliopisto (University of Helsinki).
Organisers
The School is organised by
the Department of Chemistry, University of Helsinki, Finland.
The organising committee consists of
Lecturers
Fabrizio Creazzo,
University of Zürich
- Lecture 1: First-Principles Modelling of Solid–Liquid Interfaces: From Electronic Structure to Interfacial Dynamics
- Lecture 2: Modelling Complex Chemical Reactions at Solid–Liquid Interfaces: DFT-Enhanced Sampling and Machine Learning
Benjamin Frandsen,
University of Oslo
- Lecture 1: The importance of the (often ignored) electronic partition function in reaction kinetics
- Lecture 2: Basic insights into how electronic spin affect reaction dynamics
Jan Halborg Jensen,
University of Copenhagen
- Lecture 1: Finding transition states
- Lecture 2: The kinetics and thermodynamics of reactions
- Lecture 3: Reaction networks
Hannes Jónsson,
University of Iceland
- Lecture 1: Transition states
- Lecture 2: Quantum systems where tunneling takes place
- Lecture 3: Magnetic systems
Laura Orian,
Università degli Studi di Padova
- Lecture 1: From molecules to mechanisms: modeling chemical reactivity
- Lecture 2: The ´why´ behind reactivity: activation-strain analysis and MO theory
- Lecture 3: Beyond the energy landscape: predicting catalytic kinetics
Contributed Talks
In addition to the lectures, two 25-minute contributed talks will be given at the winter school, followed by five minutes of discussion, each.
The information is updated when the talks are selected.
Registration
The Registration is open. Registration will close when the
School is full (maximum of 95 participants), or on November
30th at 23:59, the latest. Please indicate in the registration
form if you want to present a poster at the winter school, and/or if
you wish to be considered for a contributed talk.
Please register using the online form.
The School is free of charge for academic staff at any level: students, postdocs, as well professors are all welcome to attend the school. You will have to arrange for you housing yourself. Lunches and coffees can be bought in the Unicafe Cafeteria.
The school is an in-person event, only. There will be no
possibility for remote participation.
Please note that since the school is free of charge, we are
unable to provide support for travel or accomodation costs. Please
also note that we are unable to sponsor visas or provide invitation
letters for the participants, since in the cases these are necessary,
the visa process wouldn't even finish in time for the winter
school.
Programme
|
Monday |
Tuesday |
Wednesday |
Thursday |
| 09:00 |
|
Lecture hall opens |
Lecture hall opens |
Lecture hall opens |
| 09:15 |
|
Lecture 6 |
Lecture 11 |
Lecture 15 |
| 10:05 |
|
Posters |
Lecture 12 |
Lecture 16 |
| 10:55 |
|
|
Break |
Break |
| 11:15 |
|
|
Lecture 13 |
Lecture 17 |
| 12:05 |
Registration |
Lunch |
Lecture 14 |
Lecture 18 & Closing |
| 13:15 |
Lecture 1 |
Lecture 7 |
Free after 12:55 |
Departure 13:15 |
| 14:05 |
Lecture 2 |
Lecture 8 |
|
|
| 14:55 |
Break |
Break |
|
|
| 15:15 |
Lecture 3 |
Lecture 9 |
|
|
| 16:05 |
Lecture 4 |
Lecture 10 |
|
|
| 16:55 |
Lecture 5 |
End of the Day |
|
|
| 17.45 |
End of the Day |
|
|
|
Posters
Please prepare your poster in (at most) A0 size in portrait orientation, i.e., width 841 x height 1189 mm. The poster boards are designed for this orientation, and posters wider than this will not fit.
The main poster session will take place on Monday afternoon (5 pm to 7 pm). The posters can be up in the lobby of the Porthania building (Yliopistonkatu 3) until Wednesday afternoon.
In the program, there is another poster session on Tuesday afternoon, which has no official arrangements, but you have time to freely discuss at the posters if you want.
Lecture notes
The lecture notes will be available later
in this folder.
Credits
Students who wish to have credits for the course, should write an essay on one of
the School topics, and return it before 15 Feb 2027. You find a list of essay
topics in the same folder as the Lecture Notes (above), as well as below.
The length of the essay is about 3 A4 pages when pictures are not counted.
The essays will be returned using this form: Link.
It is not allowed to use AI-tools to produce the text.
The course is valued at 3 ECTS.
The essay topics are (to be updated after the School):
- The origin of weak intermolecular interaction
- Title of your own choice (it should be related to the theme of the Winter School)
Accommodation
Participants should make their own accommodation arrangements.
Questions
General questions concerning the School can be addressed
to
ws2026-org@chem.helsinki.fi.
Practical notes
Some things to consider.
- Arriving at the airport, you can take the
public bus 600 or
the
train connection between the airport and the central railway
station with ringrail trains I and P. You need
an ABC zone ticket, which you can buy from a vending
machine, an R-kioski -shop or with the HSL mobile phone app. You
might consider buying a four-day ticket (see tip below).
- Information about tickets for public transport (HSL):
Link to HSL
pages . To move around in the city center area, you will need
to buy a AB ticket. However, for the airport you need a ticket for
zones ABC. A four-day ticket for the ABC zone will cost 32,00
€. You can also buy tickets with the mobile phone app "HSL".
- The HSL
app,
The Journey Planner for public transport, and
Google Maps might be
helpful. Wikipedia knows
about
public transport in Helsinki as well.
-
A taxi from the airport to the city centre should be around 40–50 €.
Note: Taxi prices are unregulated,
so a ride can in principle cost anything. Best to ask
the driver beforehand. This applies to all taxi rides, not only
from/to the airport. You can also use Uber or Bolt for Taxi transport.
Some Finnish taxi companies also have their own apps.
- Look at the
latest weather reports before travelling as temperatures
might drop below the freezing point for the Winter School week. At
this time of year snow, rain, and a few degrees above or below zero Centigrades are common
conditions.
Eat and drink
Lunch is available in
various student canteens (the nearest one will be named Metsätalo, in the same building as the
Winter School)
and restaurants around campus.
For the evenings, we have collected a list of places suitable for
slightly larger groups. The ones in italics are also good
for just a drink or three. See also the map of restaurants.
The organizers recommend
- Cella - a traditional restaurant in the Kallio district
- Elite - a traditional culture and artist restaurant
- CoolHead - a craft brewery on the Viikki campus that also serves pizza; especially famous for their sour beers
- Fat Lizard - a craft brewery restaurant in downtown Helsinki
- Manala - the place for late night eats
- St Urho's Pub - a pub close to the parliament building that also serves food from Manala's kitchen
- Juttutupa - one of the oldest restaurants in Helsinki
- Kaisla - a bar in downtown Helsinki with one of the best beer selections
- Konstan Möljä - traditional Finnish buffet
Other things of interest
Helsinki might be cold, but is not dead in November and December.
Check out the #myhelsinki pages.