Conveners
Solid State and Materials Chemistry II
- Elena Sturm (Ludwig-Maximilians-Universität München)
The system of 1:1:1 cocrystal solvate of caffeine, 4-chloro-3-nitrobenzoic acid and methanol is the first reported example of molecular crystal that exhibits reversible elastic flexibility. Here we show in-situ recrystallization of long flexible acicular single crystals post partial desolvation. This apparent reversible process in accompanied by increased inclusion of the solvent than as...
Understanding the structural change caused by radiation damage is an essential element in the development of strategies for the safe disposal of radioactive waste. For this purpose, monazite crystals of different chemical composition were synthesized and irradiated with 1.7 GeV Au ions to simulate the radiation damage caused by radioactive decay. Subsequently, the single crystals were...
Zeolitic Imidazolate Frameworks (ZIFs) are a large subgroup of metal-organic frameworks, which has been studied for decades. The synthesis in aqueous solution using methylimidazolate (Hmim) and different zinc salts leads to the formation of Zn3mim5XH2O·nH2O with x = Br, Cl and α-Zn3mim5X with x = F, OH phases showing an yqt network. The imcorporation different halide and hydroxide anions into...
We have analyzed the microstructure of LaMO3 perovskites (M=Ni,Co,Fe), which were synthesized by incipient wetness impregnation of mesoporous carbon spheres and subsequent sintering. In the case of LaNiO3, we identified Ruddlesden-Popper shear faults via transmission electron microscopy. We set up a structural model for these defects and fit it to complementary...
Rim-modified pillarplex cavitands are presented and structurally discussed. These supramolecular organometallic complexes (SOCs) are tubular-shaped complexes of the size of 1 nm, featuring a pore which allows for guest uptake. The modification of the organic ligand leads to the introduction of structural flexibility in the corresponding SOC. Additionally, complementary hydrogen bonding is...
