نتایج جستجو برای: orthohydrogen
تعداد نتایج: 15 فیلتر نتایج به سال:
NMR Spectroscopy. In their Communication (e202213581), Boyd M. Goodson et al. report the addition of parahydrogen to particles comprised an iridium-based catalyst on a metal–organic framework produce orthohydrogen. A strongly hyperpolarized state is achieved.
We report an inelastic neutron scattering investigation of the quantum dynamics of hydrogen molecules trapped inside anisotropic fullerene cages. Transitions among the manifold of quantized rotational and translational states are directly observed. The spectra recorded as a function of energy and momentum transfer are interpreted in terms of the rotational potential and the cage dimensions. The...
Alkali atoms trapped in solid hydrogen matrices have demonstrated ultralong electron spin coherence times and are promising as quantum sensors. Their is limited by magnetic noise from naturally occurring orthohydrogen molecules the parahydrogen matrix. In gas phase, component of can be converted to flowing it over a catalyst held at cryogenic temperatures, with lower temperatures giving fractio...
hydrogen is an unusual substance in that its molecule exists in two forms, known as ortho and para, with markedly different properties. energy level of the ortho molecule is higher than para, therefore, the latter is employed for industrial purposes. consequently, for a high conversion of ortho to para hydrogen a catalyst reactor must be employed. therefore, one of the main objectives of th...
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