Motivated by Yung and Miller’s suggestion [1997] that N2O is isotopically fractionated during UV photolysis in the stratosphere, we have studied the photolysis rates of the NNO and NNO structural isotopomers. In this study, we follow the concentrations of these compounds with FTIR spectroscopy during photolysis at 213 nm. Our results show that, as Yung and Miller predicted, the photolysis rate ...

Transition metal–boron complexes BnM have been predicted at density functional theory level to be molecular bowls (n 1⁄4 8–14) hosting a transition metal atom (M) inside or molecular tires (n 1⁄4 14) centered with a transition metal atom. Small Bn clusters prove to be effective inorganic ligands to all the VB–VIIIB transition metal elements in the periodic table. Density functional evidences ob...

Serotonin N-acetyltransferase (AANAT) controls the daily rhythm in melatonin synthesis. When isolated from tissue, AANAT copurifies with isoforms epsilon and zeta of 14-3-3. We have determined the structure of AANAT bound to 14-3-3zeta, an association that is phosphorylation dependent. AANAT is bound in the central channel of the 14-3-3zeta dimer, and is held in place by extensive interactions ...