Porous materials for pumping nuclear hyperpolarization of small molecules ((2) B04)

• Subject Area: Experimental Condensed Matter Physics ; Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 514664767

Metal-Organic Frameworks (MOFs) with paramagnetic species incorporated at well defined, dispersed, and exposed sites at their inner surface allow to generate nuclear spin hyperpolarization in adsorbed small molecules. Various applications are possible, e.g., selective sensing of spurious gas contaminations and MRI with enhanced sensitivity based on the molecular sieving effects. Three types of distinct paramagnetic species in MOFs are considered: (i) Centers with paramagnetic ground states, (ii) organic groups with short lived photo-excited triplet states, and (iii) nitrogen vacancy centers in diamond nanocrystals encapsulated by MOFs.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 386: HYP*MOL – Hyperpolarization in molecular systems
• Major Instrumentation: Cryostat with optical access
• Instrumentation Group: 8550 Spezielle Kryostaten (für tiefste Temperaturen)
• Applicant Institution: Universität Leipzig
• Project Heads: Professor Dr. Harald Krautscheid; Professor Dr. Andreas Pöppl; Dr. Ralf Wunderlich