Organic Radicals

Organic radicals as spin filters.

Molecular spintronics has received extensive interest in recent years. Due to their favorable properties such as long spin coherence lengths and an amenability to fine-tuning via chemical substituents, organic materials play a prominent role in this field. Here we discuss how organic radicals may act as spin filters in the coherent tunneling regime and how they may be tuned to filter either maj...

Programmed assembly of organic radicals on DNA.

Nitronyl nitroxide radical introduced to naphthyridine carbamate dimer is noncovalently bound to a CGG/CGG triad as an addressable position in DNA duplexes, leading to the programmed assembly of the radical molecules into an 11-mer duplex and a tandem repetitive array of double stranded DNA.

An EPR Study of Heterogeneous Reaction of CH3O2 Radicals with Organic Compounds: Effect of Organic Compound and Surface Nature

The reaction of CH3O2 radicals with acetaldehyde on the solid surface of NH4NO3 has been studied in a flow capillary reactor at low pressure and room temperature. The experiments were performed using EPR spectrometer combined with the kinetic method of radicals freezing. Peroxy radicals revealed an oscillation complex behavior during the process regarding to the phenomenon of radicals multiplic...

Permutation Reactions of Organic Peroxy Radicals in the Troposphere

Organic peroxy radicals are important intermediates in the atmospheric photooxidation of hydrocarbons. Laboratory studies indicate that these radicals react among themselves (permutation reactions) at rates which should compete with those for reaction with HO 2 and NO x under some atmospheric conditions. Using the available laboratory data, we have developed a simplified method of representing ...

Free radicals, antioxidants, and soil organic matter recalcitrance