Spectroscopy and photochemistry of copper nitrate clusters

Multiphase modeling of nitrate photochemistry

Photochemistry of monochloro complexes of copper(II) in methanol probed by ultrafast transient absorption spectroscopy.

Ultrafast transient absorption spectra in the deep to near UV range (212-384 nm) were measured for the [Cu(II)(MeOH)(5)Cl](+) complexes in methanol following 255-nm excitation of the complex into the ligand-to-metal charge-transfer excited state. The electronically excited complex undergoes sub-200 fs radiationless decay, predominantly via back electron transfer, to the hot electronic ground st...

Photochemistry of nitrate chemisorbed on various metal oxide surfaces.

Atmospheric aerosols are known to provide an important surface for gas-solid interfaces that can lead to heterogeneous reactions impacting tropospheric chemistry. In this work, α-Fe2O3, TiO2, γ-Al2O3, SiO2 and ZnO, common components of atmospheric aerosols, served as models to investigate the gas-solid interface of nitric acid with aerosols in the presence of simulated solar radiation. Adsorbed...

Photochemistry and dynamics of C6H6–O2 clusters at 226 nm

The photochemistry and dynamics of small C6H6–O2 clusters were studied in a supersonic expansion using 226 nm laser excitation and multiphoton ionization probes. We were able to detect a strong signal due to O(P2) when mixed clusters were present in the expansion but no O atom fragments could be observed in the absence of benzene in the expansion mixture. Photofragmentation of O2 in the unique ...

Dynamics and photochemistry of neutral van der waals clusters.

This review covers the field of excited electronic-state chemical reactions in small clusters. The clusters emphasized are those comprised of an organic chromophore that is electronically excited to initiate the reaction and of various coreactant molecules ranging from water and ammonia to ethers, amines, aromatics, alkanes, alkenes, and diatomics. The reactions discussed include vibrational re...