The Clarke number of fluorine is about 0.03%, which is about half of that of sulfur, one-sixth of that of chlorine and almost equal to that of nitrogen and rubidium. This suggests that fluorine should ...

Anionic copolymerization of β-cyanopropionaldehyde (CPA, M 1) with dimethylketene (DMK, M 2) initiated by benzophenone-dilithium complex was carried out at 0°C and −78°C. The values of monomer ...