Tag

Isomers

All articles tagged with #isomers

science1 year ago•4 min saved

Scientists Uncover Mystery Behind Crystal's Dual Melting Points

Researchers have solved a 120-year-old mystery regarding the compound acetaldehyde phenylhydrazone, which exhibits two distinct melting points. The phenomenon is due to a minuscule contamination that causes the compound to form two different liquid structures upon melting, depending on exposure to acid or base. This results in the compound having a lower melting point when exposed to acid, which acts as a catalyst for isomer conversion. The study highlights the compound's sensitivity to acid and the role of isomer configurations in its melting behavior.

via ScienceAlert|

#chemistry #crystals #isomers

science2 years ago•5 min saved

Quantum State Unveils Clues to Radioactive Nuclei Enigma

Researchers at Oak Ridge National Laboratory have discovered a long-lived excited state of radioactive sodium-32, which challenges our understanding of nuclear shapes and energy levels. The unexpected finding raises questions about how nuclei evolve and interact, and could have implications for our understanding of nuclear physics and the formation of elements. The discovery was made using data collected from the Facility for Rare Isotope Beams (FRIB) at Michigan State University, and further experiments are planned to determine the shape of the excited state.

via Phys.org|

#atomic-nuclei #frib #isomers