(102)No(2+) as a soft metal ion: Extraction of (255)No using crown ethers.
Nobelium (No) 2+ exhibits soft metal ion behavior comparable to Pb 2+ in crown ether complexes, with extraction efficiency similar to Sr 2+ in aqueous solutions.
- Why it matters: Understanding the chemical properties of transfermium elements like nobelium is crucial due to their limited known chemistry and potential applications, yet their behavior remains largely unexplored.
- What they did: The study used crown ethers to demonstrate No 2+'s soft metal ion characteristics through solid-liquid extraction with di-tBu-dicyclohexano-18-crown-6 and supported findings with density functional theory calculations.
- The result: Results show No 2+ forms stable complexes akin to soft metals, enabling new insights into its chemistry and suggesting relativistic effects significantly influence its bonding, expanding knowledge of heavy actinide behavior.