2020年5月26日 · The most common chemical bond in the living world — that between carbon and hydrogen — has long resisted attempts by chemists to crack it open, thwarting efforts to add new bells and whistles to old carbon-based molecules.

2018年5月3日 · Image courtesy of Chemistry World. A reaction that kicks out a single nitrogen, oxygen or sulfur atom from six-membered rings using only blue light has been developed by US scientists. The method involves breaking the C–N, C–O or C–S bond in saturated heterocycles and reclosing the ring to create smaller cyclic structures.

2019年7月11日 · Since most chemical reactions occur rapidly, these fast-pulse lasers are key to “seeing” how the electrons that form the chemical bond behave when the bond breaks and/or reforms. Image: Yuki Kobayashi makes adjustments to an experiment in the basement of Hildebrand Hall.

2020年5月19日 · Borylation and derivatization of tert-butyl ester of dehydroabietic acid : An iridium catalyst ligated by 2-methylphenanthroline enables undirected borylation of primary C–H bonds and, when primary C–H bonds are absent or blocked, borylation of strong secondary C–H bonds. Reactions at the resulting carbon-boron bond show how these borylations can lead to the installation of a wide range ...

69th Annual G.N. Lewis Lecture: Jeffrey Reimer, "When the chemical bond is not enough"

Physical Chemistry — Chemical reaction dynamics, molecular spectroscopy, energy, atmospheric and combustion chemistry, and lasers Moore was among the first chemists to use lasers in the 1960s and opened major new areas of molecular energy transfer, chemical reaction kinetics and photochemistry. In recent years he provided quantitative benchmarks for theories of chemical bond breaking. His ...

2020年10月1日 · The oxidation of a single C–H bond (red) makes erythromycin six times more biologically active than its precursor 6-deoxy erythromycin A – this chemical feat is something that bacteria perform with enviable ease. Source Royal Chemical Society.

2021年8月26日 · Image courtesy of Chemistry World. A reaction that kicks out a single nitrogen, oxygen or sulfur atom from six-membered rings using only blue light has been developed by US scientists. The method involves breaking the C–N, C–O or C–S bond in saturated heterocycles and reclosing the ring to create smaller cyclic structures. "This avoids having to go back to the very beginning of a ...

2020年9月24日 · The GNR backbone has a width of 1.6 nanometers. (UC Berkeley image by Daniel Rizzo) “Using chemistry, we created a tiny change, a change in just one chemical bond per about every 100 atoms, but which increased the metallicity of the nanoribbon by a factor of 20, and that is important, from a practical point of view, to make this a good metal.”

2021年4月5日 · Now PMP Tech has strengthened its bond with Berkeley by investing in a top campaign priority for both the campus and the College. Heathcock Hall will enable expansion of research and undergraduate teaching in state-of-the-art laboratories and collaborative spaces, while providing facilities where faculty and student entrepreneurs can ...