A scaling analysis of ozone photochemistry: II Investigation of the similarity relationship B. Ainslie and D. G. Steyn Atmospheric Science Programme, The University of British Columbia, Vancouver, Canada Received: 17 October 2005 – Accepted: 23 November 2005 – Published: 19 December 2005 Correspondence to: B. Ainslie ([email protected]) © 2005 Author(s). This work is licensed under a Creative...

The photosensitivity of metal carbonyls has been known almost as long as the class of coordination compounds itself. Among no other group of inorganic compounds may one find so many light-sensitive materials. Hence photochemical reactions of metal carbonyls have found wide applications for synthetic purposes. However, whereas much research has been done to understand the thermal reactions," the...

We present here the reversible, guest-controlled disproportionation of homomeric and hybrid capsules using photochemistry. The supramolecular containers are self-assembled from shallow and deep cavitand modules.

I. What are we trying to model? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 A. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 B. Reaction-center components . . . . . . . . . . . . ....

The cis-syn cyclobutane pyrimidine dimer is one of the major classes of carcinogenic UV-induced DNA photoproducts. In this work, diverse high-level quantum-chemical methods were used to determine the spectroscopic properties of neutral (singlet and triplet) and charged (cation and anion) species of thymine dimers. Maps of potential energy, charge distribution, electron affinity, and ionization ...

irradiation of &methyl; spiro [2.5] oct-7-en-4-one through its singlet excited state resulted in the formation of 4-methyl spiro [2.5] oct-4-en -6-one. we have used the cyclopropyl moiety in the molecule as a probe to study the operating mechanism in the photochemistry of ?, ?-unsaturated compounds. the results showed that this photoisomerization probably occurs through a concerted process.

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Print Version Interactive Discussion EGU Abstract A scaling analysis has been used to capture the integrated behaviour of several pho-tochemical mechanisms for a wide range of precursor concentrations and a variety of environmental conditions. Th...

Sulfur gases are common components in the volcanic and biological emission on Earth, and are expected to be important input gases for atmospheres on terrestrial exoplanets. We study the atmospheric composition and the spectra of terrestrial exoplanets with sulfur compounds (i.e., H2S and SO2) emitted from their surfaces. We use a comprehensive one-dimensional photochemistry model and radiative ...

Summary Photosystem I (PSI) converts photons into electrons with a nearly 100% quantum efficiency. Its minimal energy requirement for photochemistry corresponds to 700-nm photon, representing the well-known "red limit" of oxygenic photosynthesis. Recently, some cyanobacteria containing red-shifted pigment chlorophyll f have been shown harvest up 800 nm. To investigate mechanism ...