Development and characterization of self-assembled container molecules for triplet dynamic nuclear polarization ((2) B01)

• Subject Area: Inorganic Molecular Chemistry - Synthesis and Characterisation
• Term: since 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 514664767

Polarization transfer from photo-excited triplet electron spins to nuclear spins (triplet DNP) is a process capable of generating hyperpolarized target molecules at room-temperature. Here, we aim at self-assembled molecular complexes forming a container for small molecules (H2O, MeOH, EtOH) to be polarized, where polarization transfer occurs from the excited triplet-state of the “side-wall” molecular units of the host container complex (i.e., polyaromatic organic groups) to the nuclei of the encapsulated guest molecules. Time-resolved spectroscopies, EPR, and mass spectrometry will help to identify tailored molecular complexes with a maximum efficiency of polarization transfer.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 386: HYP*MOL – Hyperpolarization in molecular systems
• Major Instrumentation: Desktop EPR
• Instrumentation Group: 1770 Elektronenspinresonanz-Spektrometer (EPR, ESR)
• Applicant Institution: Universität Leipzig
• Project Heads: Professor Dr. Bernd Abel; Professor Dr. Berthold Kersting