The synthesis and structural characterisation of the difluorido organo gold(iii) complexes [AuClF2(SIMes)] and [AuF2(OTeF5)(SIMes)] are presented. The substitution of a fluorido ligand in [AuF3(SIMes)] by an OTeF5 group increases the Lewis acidity of the Au moiety. A scale for carbene affinities is presented, which correlates calculated and experimental values for the Lewis acidity of the metal centre in akin compounds.

The synthesis and structural characterisation of [(NONR)M] (NON=O(SiMe2NR)2]2−; R=tBu, Ph, 2,6‐Me2C6H3 (Dmp), 2,6‐iPr2C6H3 (Dipp); M=Ge, Sn, Pb) is described. Germanium complexes [(NONPh)Ge], [(NONDmp)Ge] and [(NONDipp)Ge] are monomeric. Tin complexes [(NONPh)Sn]2, [(NONDmp)Sn]2 and [(NONtBu)Sn]2 are dimeric in the solid‐state, with [(NONPh)Sn]2 forming a link through bridging N‐atoms, [(NONDmp)Sn]2 linked through Sn⋅⋅⋅Ar contacts and [(NONtBu)Sn]2 forming the first distannene bearing two amido ligands. In contrast, [(NONDipp)Sn] is monomeric in the solid‐state. The lead complexes [(NONPh)Pb]2 and [(NONDmp)Pb]2 are isostructual with their tin analogues while [(NONtBu)Pb] is monomeric in the solid‐state. Solution phase NMR spectroscopic data suggest that all [(NONR)M] compounds are monomeric in solution. Structural parameters, including buried volume (%Vbur) are discussed.

The ternary sulfido bismuthate K 3 [BiS 3 ] is synthesized in quantitative yields. The material exhibits nonlinear optical properties with strong second harmonic generation properties at arbitrary wavelengths in the infrared spectral range and a notable laser-induced damage threshold of 5.22 GW cm −2 for pulsed laser radiation at a wavelength of 1040 nm, a pulse duration of 180 fs, and a repetition rate of 12.5 kHz. K 3 [BiS 3 ] indicates semiconductivity with a direct optical band gap of 2.51 eV. Dielectric and impedance characterizations demonstrate κ values in the range of 6−13 at 1 kHz and a high electrical resistivity. A strong diamagnetic behavior with a susceptibility of −2.73 × 10 −4 m 3 kg −1 at room temperature is observed. These results suggest it is a promising nonlinear optical candidate for the infrared region. The synergic physical characteristics of K 3 [BiS 3 ] provide insight into the correlation of optical, electrical, and magnetic properties.

In den vergangenen Jahrzehnten sind 3‐D‐Drucker nicht nur preiswerter geworden, sondern werden auch verstärkt genutzt: in der Analytik, der Lehre und im Chemielabor. So lassen sich etwa Magnetrührstäbe mit aktiven Materialien erstellen, Gläser oder Elektroden für die Batterieforschung.

Moleküle in den Händen halten, und das fast ohne Hardware: Ein Projekt der Freien Universität Berlin macht Chemie erfassbar.