IRTG 2991 - International Research Training Group 2991

Welcome

IRTG 2991 is an international and interdisciplinary, knowledge-driven research and training program on innovative supramolecular functional materials with photoluminescent properties. In close collaboration between researchers at Julius-Maximilians-University Würzburg (JMU) and the Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) the team conducts cutting edge research projects on fluorescent, phosphorescent and higher complexity luminescent materials by making use of smart supramolecular matrices. The research program includes synthetic organic and biomolecular chemistry, physical and theoretical chemistry for structure and function elucidation, and applications in bioimaging and OLED devices.

Spokespersons

Prof. Dr. Frank Würthner

Institute of Organic Chemistry &
Center for Nanosystems Chemistry
Julius-Maximilians-Universität Würzburg (JMU)
Germany

Prof. Dr. Mahesh Hariharan

School of Chemistry
Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM)
India

https://chemistry.iisertvm.ac.in/

Contact: irtg2991@uni-wuerzburg.de

Just published

Guest-Induced Activation of Multicolor Photoluminescence in Naphthalene Bisimide Liquid Crystals
J. Nowarra, S. Garain, M. Stolte, F. Würthner
Advanced Materials 2026, first published: February 25th
DOI: 10.1002/adma.202520184

Particle swarm optimization in the realm of chemistry: from theory to applications
M. Rajeevan; Niha; C. John; S. Mani; R. S. Swathi
Chem. Soc. Rev., 2026, first published: November 14th
DOI: 10.1039/D5CS00912J

DIALECT, a Software Package for Exciton Spectra and Dynamics in Large Molecular Assemblies from Weak to Strong Light–Matter Coupling Regimes
R. Einsele; X. Miao; L. N. Phillip; R. Mitric
J. Phys. Chem. A 2025, first published: July 17th
DOI: 10.1021/acs.jpca.5c03307

Chiroptical properties of axially chiral indolenine merocyanine dimers: role of the Huang–Rhys factor and interchromophore mixing of electric and magnetic transition dipole moments
E. Freytag; M. Hofer; M. Kopp; M. Holzapfel; M. Stolte; F. Würthner; T. Renger; C. Lambert
Phys. Chem. Chem. Phys. 2025, first published: July 7th
DOI: 10.1039/D5CP01915J

Events

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News

IRTG2991 Workshop on "Theoretical Chemistry with a Focus on Electronic Structure"

On January 29th and 30th, 2026, the IRTG 2991 hosted a hybrid specialized workshop on “Theoretical Chemistry with a Focus on Electronic Structure” at the University of Würzburg.

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IRTG2991 Workshop on "Structure elucidation via Crystallography and Cryo-Electron Microscopy", with Guest Visit of Prof. R. Anand

The International Research Training Group (IRTG) 2991 hosted a hybrid scientific workshop on January 22-23, 2026, at IISER Thiruvananthapuram.

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Congratulation to Merle Röhr

With her lecture on Exploring Functional Landscapes in Molecular Aggregates: Theoretical Methods for Electronic Structure and Property-Driven Design (GDCh Kolloquium Unterfranken, 13.11.2025) CNC Junior Group Leader Dr. Merle Röhr successfully finished her habilitation.

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Hubland Süd, Geb. C1

International Research Training Group 2991

IRTG2991 Workshop on "Theoretical Chemistry with a Focus on Electronic Structure"

IRTG2991 Workshop on "Structure elucidation via Crystallography and Cryo-Electron Microscopy", with Guest Visit of Prof. R. Anand

Congratulation to Merle Röhr

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