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Correlation effects and resonances in molecular photoionization
(1994)
The photoionization cross sections of CS$sb2$ leading to the $Xsp2Pisb{g}$, $Asp2Pisb{u}$, and $Bsp2Sigmasb{u}sp+$, and $Csp2Sigmasb{g}sp+$ states of CS$sb2sp+$ have been computed in the multichannel frozen core Hartree-Fock ...
Surface reactivity of strongly interacting alloys and its influence on their catalytic properties
(1988)
The intermetallic compounds of the Brewer-Engel type represent a unique case in novel heterogeneous catalyst systems. The components of these alloys are known to have altered electronic structures described as sharing of ...
Mechanistic studies on isopenicillin N synthase
(1994)
Several plasmids containing the isopenicillin N synthase gene were constructed and introduced into different expression systems that yielded large quantities of protein, mostly as inclusion bodies. Procedures to obtain ...
IR laser induced photodesorption of small alcohols (C1-C4) on silver (111)
(1994)
Infrared laser induced photodesorption of small alcohols (C1-C4) on Ag (111) was studied using C-H excitation (2800-3000cm^-1) and O-H excitation (3100-3500cm^-1). The photodesorption yield (PDY) depended on a number of ...
The effect of the N-substituent in electrophilic substitution reactions with acyclic nitrogen substituted carbonyl compounds
(1986)
The regioselectivity in the deprotonation of ketimines was examined. The studies examined the effect of the base, the deprotonation temperature and the nitrogen substituent on the formation of azaallyllithium reagents from ...
Kinetic isotope effect studies of some carboxylic anhydrides useful as models for certain enzymatic processes
(1981)
Solvent and β-secondary kinetic isotope effects were used to study the hydrolysis mechanisms of some carboxylic anhydrides and a thiolester. The studies were carried out in order to obtain model system data useful in ...
A new method for the in situ generation of chiral and achiral vinylboranes, and their use as reactive dienophiles in Diels-Alder reactions
(1994)
Achiral vinyldihaloboranes, trivinylborane were generated in situ via a newly developed methodology which involves the reaction of vinyltributyltin with BBr$sb3$ or BCl$sb3.$ These compounds proved to be highly activated ...
A thermodynamic study of some aqueous monosaccharide solutions
(1979)
The heats of fusion, solubility, heats of solution at saturation and activity coefficients in binary aqueous solutions of fructose, xylose and arabinose were measured up to their saturation points at 25 °C. The activity ...
Chemical and morphological investigations of perfluorosulfonate ionomers
(1988)
High-performance liquid chromatographic procedures were used to study the ion-exchange selectivities of perfluorosulfonate ionomers (PFSI's). HPLC columns were packed with PFSI-coated octadecyl-derivatized silica and were ...
Mechanism-based inactivation of phosphotriesterase by alkynyl phosphate esters and studies of the amidotransferase activity of E. coli carbamoyl phosphate synthetase
(1995)
Alkynyl phosphate esters were used to probe the active site structure of phosphotriesterase. These compounds have the potential to be converted by the enzyme to a highly reactive ketene intermediate which can then react ...