The photochemistry of three 9-(dihydroxyphenyl)anthracenes 6-8 was studied in neat CH(3)CN and selected organic solvents, to investigate excited state intramolecular proton transfer (ESIPT) from the phenol to the anthracene moiety. In D(2)O-CH(3)CN mixtures, the observed deuterium exchange of 6-8 is consistent with water-mediated (formal) ESIPT process from the ortho phenolic OH to the 10'-posi...

The substitution of Mn for Fe in Ce2Fe17 suppresses its ferromagnetic ground state completely for Mn contents x 0.5 Mn/f.u. Ce2Fe16Mn has only an antiferromagnetic phase incommensurate helix along c axis below TN=198 K. In this paper, we present and discuss the effects of deuterium insertion that can be considered as an application of negative chemical pressure on the magnetostructural properti...

Dormant bacterial spores are able to survive long periods of time without nutrients, withstand harsh environmental conditions, and germinate into metabolically active bacteria when conditions are favorable. Numerous factors influence this hardiness, including the spore structure and the presence of compounds to protect DNA from damage. It is known that the water content of the spore core plays ...

The hydr6lysis of a series of substituted anilides of Nacetyl-L-tyrosine by cY-chymotrypsin has been investigated. Values of the kinetic parameters have been obtained in water and deuterium oxide solvent systems. It has been shown that the isotope effect decreases as the basicity of the substrate is increased. pH dependence studies have shown that the rate of hydrolysis, kz, is independent of p...

Abstract Tangential compact neutron emission spectrometer (CNES) based on the Cs 2 LiYCl 6 :Ce with 7 Li-enrichment (CLYC7) scintillator is newly installed in Large Helical Device (LHD). Measurement of energy spectrum was performed using CNES tangential neutral beam (NB) heated deuterium plasma discharges. The Doppler shift according to direction NB injection has been obtained. When fast ions m...

Measurements of the isotopic composition of stratospheric water by the ATMOS instrument are used to infer the convective history of stratospheric air. The average water vapor entering the stratosphere is found to be highly depleted of deuterium, with 6Dw of670 + 80 (67% deuterium loss). Model calculations predict, however, that under conditions of thermodynamic equilibrium, dehydration to strat...

Experiments on the interaction of intense, ultrafast pulses with large van der Waals bonded clusters have shown that these clusters can explode with substantial kinetic energy and that the explosion of deuterium clusters can drive nuclear fusion reactions. Producing explosions in deuterated methane clusters with a 100 fs, 100 TW laser pulse, it is found that deuterium ions are accelerated to su...