Initial Steps of Amyloidogenic Peptide Assembly Revealed by Cold-Ion Spectroscopy
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N-lithio-2,2,6,6-tetramethylpiperidine [Li(tmp)] reacts with AlX3 (X = Cl, Br) in Et2O/n-hexane soln. to generate of substitution and ether cleavage products, [(tmp)Al(X)(m-OEt)]2 (X = Cl, Br). However, when the reaction is allowed to proceed in n-hexane a ...
The laser flash photolysis of I was studied over a wide pressure range in several bath gases. At low pressures the obsd. quantum yield for photolysis at 6943 .ANG. is independent of the gas d., whereas at higher pressures the quantum yield decreases with i ...
In view of the uncertainty of the origin of the secular increase of N2O, we studied heterogeneous processes that contribute to formation of N2O in an environment that comes as close as possible to exhaust conditions contg. NO and SO2, among other constitue ...
The temp. jump relaxation method was used for kinetic measurements in the gas phase. The system N2O4 .dblarw. 2NO2 was studied. Fast temp. jumps were induced by IR absorption from a CO2 laser. Temp. jumps of
The rates of combination of Me. with NO and O2 were measured by flash spectroscopy at 295 DegK. The highpressure rate coeff. for Me. + NO(+M) -> MeNO(+M) was recorded as 1.0(+-0.15) * 1013 cm3 mole-1 sec-1. The low-pressure fall-off was interpreted with th ...
