Synthetic Chemistry in Liquid Ammonia Solution

Solution Phenomena in Liquid Ammonia

An extended discussion of solution phenomena in anhydrous liquid ammonia is presented. The solvent properties of ammonia for various classes of compounds is discussed in terms of its hydrogen bonding ability, moderate dielectric constant, elatively high basicity, and high dipole moment. In general, ammonia is a better solvent than water for covalent molecules, but a poor solvent for ionic speci...

Radical Chemistry in a Femtosecond Laser Plasma: Photochemical Reduction of Ag⁺ in Liquid Ammonia Solution.

Plasmas with dense concentrations of reactive species such as hydrated electrons and hydroxyl radicals are generated from focusing intense femtosecond laser pulses into aqueous media. These radical species can reduce metal ions such as Au3+ to form metal nanoparticles (NPs). However, the formation of H₂O₂ by the recombination of hydroxyl radicals inhibits the reduction of Ag⁺ through back-oxida...

Synthetic biology for synthetic chemistry.

The richness and versatility of biological systems make them ideally suited to solve some of the world's most significant challenges, such as converting cheap, renewable resources into energy-rich molecules; producing high-quality, inexpensive drugs to fight disease; and remediating polluted sites. Over the years, significant strides have been made in engineering microorganisms to produce fuels...

Radiation chemistry in ammonia-water ices.

We studied the effects of 100 keV proton irradiation on films of ammonia-water mixtures between 20 and 120 K. Irradiation destroys ammonia, leading to the formation and trapping of H(2), N(2), NO, and N(2)O, the formation of cavities containing radiolytic gases, and ejection of molecules by sputtering. Using infrared spectroscopy, we show that at all temperatures the destruction of ammonia is s...

Chemistry of synthetic angiotensin.