95605-56-4Relevant academic research and scientific papers
A Comparsion between Zeolite-Solvent Slurry and Dry Solid Photolyses
Ramamurthy, V.,Corbin, D. R.,Turro, N. J.,Zhang, Z.,Garcia-Garibay, M. A.
, p. 255 - 261 (2007/10/02)
The use of zeolite-solvent slurry as a convenient medium to carry out photoreactions is illustrated with four examples, namely Norrish type I reaction of dibenzyl ketones, Norrish type I and type II reactions of α-alkylbenzyl benzyl ketones, Norrish type II reaction of aryl alkyl ketones, and photodimerization of acenaphthylene.Solvent present within the supercages of zeolites X and Y provides constraint on the mobility of the included guest molecules.Such restrictions are reflected in the product distributions.The difference in the product distribution obtained between the zeolite-solvent slurry and a homogeneous solution is often higher than that between the dry powder zeolites and a homogeneous solution.
Photochemistry of ketones adsorbed on porous silica
Turro, Nicholas J.
, p. 1589 - 1616 (2007/10/02)
The Phetochemical reactions of several families of ketones adsorbed on various forms of silica have been investigated. The influence of surface coverage, silica average pore diameter, temperature, applied magnetic fields, and additives on the product distributions have been determined. The results are consistent with a model in which the silica surface consists of two major regions, one consisting of stronger binding sites (active silanol groups) and the other consisting of weaker binding sites (free silanol groups). The relative proportions of these two types of sites are related to the pore size of the silica, smaller pores correlating with a larger fraction of the stronger binding sites and larger pores correlating with a smaller fraction of the stronger binding sites. At low coverage, the initial location of a ketone in one of the two binding sites is an important factor in determining the product distributions. Some preliminary results are reported on the time resolved spectroscopy of ketones adsorbed on silica investigated by diffuse reflectance absorption spectrescopy.
PHOTOCHEMISTRY OF PHENYL ALKYL KETONES ADSORBED ON ZEOLITE MOLECULAR SIEVES. OBSERVATION OF PRONOUNCED EFFECTS ON TYPE I/TYPE II PHOTOCHEMISTRY.
Turro, Nicholas J.,Wan, Peter
, p. 3655 - 3658 (2007/10/02)
The photolysis of phenyl alkyl ketones adsorbed on a number of commonly available zeolites (molecular sieves) can result in dramatic changes in Type I/Type II photochemistry.
