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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 ...
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 ...
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 ...
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 ...
Xenon analysis in petroleum
(1995)
We report here the development of our method for measurement of the elemental and isotopic composition of xenon in petroleum. The method consists of three distinct stages: ( 1 ) the complete oxidation of petroleum; (2) ...
Structural chemistry of binary and ternary hafnium-rich tellurides
(1995)
While ternary group V tellurides have received much attention recently, the chemistry of the group IV transition metal tellurides, especially that of hafnium, has remained virtually unexplored. Brewer's ideas concerning ...
A study of small volatile organic compounds with PDMS
(1994)
Macfarlane first made the intriguing observation that fission fragment impacts on solid organics can desorb ionized nonvolatile molecules for mass analysis. This technique is called plasma desorption mass spectrometry ...
Synthesis, characterization, and structure of molybdenum and tungsten trinuclear compounds with more than six cluster electrons
(1992)
Synthetic methods for a series of new M3X13 type triangular trinuclear clusters with eight cluster electrons and a core of M3OX3 (M = Mo, W; X = Cl, Br) are described in this dissertation. The methods employed in the ...