| Description: | [Institute Colloquium] Prof. Dirk Volkmer (Chair Professor of Augsburg University, Germany) -- Functional K3,3 (“Kuratowski”) Building Units in Materials Chemistry: Past, Present, and Future |
| Date: | Wednesday, Dec 11, 2024 |
| Time: | 11 a.m. - 1 p.m. |
| Venue: | D N Wadia Lecture Theatre |
| Details: | The first metal-organic framework (MFU-4, Metal-organic Framework Ulm University) comprising “Kuratowski-type” coordination units was reported in 2009.[1] Its strictly orthogonal geometry has inspired chemists to develop a diverse range of functional materials. Owing to a combination of nano-sized cavities and ultra-narrow pores, MFU-4 features kinetic gas trapping allowing for quantum sieving of light hydrogen isotopologues,[2] or high-capacity/slow-release entrapment of noble gas atoms.[3] Gas-specific uptake rates allowed us to construct the first MOF@SAW surface acoustic wave-based sensor.[4] In contrast to MFU-4, the isoreticular MFU-4l(arge) features framework-anchored metal sites resembling the iconic scorpionate complexes (Fig.1).[5] CuI -MFU-4l shows reversible chemisorption of O2, N2, and H2 with record-breaking isosteric heats of adsorption of 32–53 kJ mol−1 .[6] Biomemetic generation of catalytically active FeIV═O species in Fe-exchanged MFU-4l has recently been demonstrated by Hou et al.,[7] indicating the huge potential of MFU-4-type metal–organic frameworks as catalytic materials. |
| Calendar: | Seminar Calendar (entered by rangan.b) |