[en] Syntheses of environmentally friendly amide derivatives for the selective separation of actinides were studied. As for the ligand, we have synthesized TODGA (N,N-Tetraoctyl diglycolamide), DHOA (N,N-Dihexyloctaneamide), and D2EHBA (N,N-Di(2-ethyl)hexylbutanamide) in high yield. The amide derivative was successfully prepared by chlorination followed by amination method in a good synthetic yield. The structures of all synthetic precursors and final products were confirmed by NMR, IR, and Mass spectrophotometer

[en] We report the laser-induced formation of peanut-shaped gold nanoparticles (Au nanopeanuts) and gold nanowires (AuNWs), and their morphological properties. Pulsed laser irradiation of citrate-capped gold nanoparticles at 532 nm induces fragmentation, spherical growth, the formation of Au nanopeanuts, and the formation of AuNWs, sequentially. High-resolution transmission electron microscopy images reveal that the Au nanopeanuts are formed by instantaneous fusion of spherical nanoparticles in random orientation by laser heating. Furthermore, Au nanopeanuts are bridged in a linear direction to form AuNWs by an amorphous accumulation of gold atoms in the junction. The laser-produced Au nanopeanuts and AuNWs slowly disintegrate, restoring the spherical shape of the original Au nanoparticles when the laser irradiation is stopped. The addition of citrate effectively prevents them from transforming back to the nanospheres