36 research outputs found
Optical absorption and fluorescence in fused silica during TRIGA pulse irradiation
Spectral transmission measurements on fused silica during and after exposure to pulsed neutron irradiatio
Effect of 1.5 MeV electron irradiation on the transmission of optical materials
Comparison of 1.5 MeV electron irradiation induced optical absorption of fused commercial silicas and optical transmission of Al2O3, MgF2, BaF2, LiF, and Be
Experimental investigation of thermal annealing of nuclear-reactor-induced coloration in fused silica
Spectral transmission characteristics of fused silica over range of temperature prior to nuclear irradiation and during thermal annealing of reactor-induced coloratio
Optical absorption in transparent materials following high-temperature reactor irradiation
Reactor irradiation effects on optical absorption levels in fused silic
Optical absorption in fused silica during TRIGA reactor pulse irradiation
Spectral transmission characteristics of fused silica before, during, and after exposure to reactor irradiation pulse
Photochemistry of Imine-Group VI Carbene Complexes with Alkenes: Synthetic Scope and Photochemical Aspects
The irradiation of imine-group VI carbene complexes with alkenes leads to the formation of 1-pyrrolines through a mechanism involving an initial cyclopropanation followed by a light-induced [1,3]-sigmatropic rearrangement. The reaction has no limitations on the structural nature of the imine-carbene complexes and is general for terminal and acyclic or cyclic 1,2-disubstituted electron-poor olefins. From the studies on photochemical aspects such as excited-state quenching, quantum yield, excited-state sensitizers and Stern-Volmer plots, it is concluded that both excited states, singlet and triplet, undergo the photoreaction. As far as we know, this is the first photochemical study on these kinds of compounds