2012年5月18日 · There are two main reasons why 239 Pu NMR has remained elusive. First, in atoms with unpaired f electrons (for example, lanthanides and actinides), an extremely strong hyperfine interaction between electron and nuclear spins gives rise to a large internal magnetic field (~100 T) at the nuclear site.

2019年1月2日 · We present a detailed nuclear magnetic resonance (NMR) study of Pu 239 in bulk and powdered single-crystal plutonium tetraboride (PuB 4), which has recently been investigated as a potential correlated topological insulator.

The synthesis, electronic structure, and characterization via single-crystal X-ray diffraction, nuclear magnetic resonance (NMR) spectroscopy, and magnetic susceptibility of (Me4N)2PuCl6 are reported.

Plutonium-239 is the radioisotope of the element plutonium, whose atomic nucleus has 145 neutrons in addition to the element-specific 94 protons, resulting in a mass number of 239: 239 Pu. See also: list of Plutonium isotopes. General data

2019年1月2日 · We present a detailed nuclear magnetic resonance (NMR) study of 239Pu in bulk and powdered single-crystal plutonium tetraboride (PuB 4 ), which has recently been investigated as a potential

In principle, the spin-½ plutonium-239 (239Pu) nucleus should be active in nuclear magnetic resonance spectroscopy. However, its signal has eluded detection for the past 50 years. Here, we report observation of a 239Pu resonance from a solid sample of plutonium dioxide (PuO 2) …

2019年1月2日 · In this article, we present a detailed nuclear magnetic resonance (NMR) study of $$\mathrm{^{239}Pu}$$ in bulk and powdered single-crystal plutonium tetraboride ($$\mathrm{PuB_4}$$), which has recently been investigated as a …

2016年9月6日 · The synthesis, electronic structure, and characterization via single-crystal X-ray diffraction, nuclear magnetic resonance (NMR) spectroscopy, and magnetic susceptibility of (Me4N)2PuCl6 are reported. NMR measurements were performed to both search for the direct (239)Pu resonance and to obtain local …

2017年1月1日 · Nuclear magnetic resonance (NMR) spectroscopy is also an important tool to identify reactions during PU synthesis and the quantification of the hydrogen bonding interactions. Both 1 H NMR and 13 C NMR techniques are well known for PU analysis [30]. An example for the 1 H NMR spectra is given in Fig. 1.7. Galbiati and coworkers synthesized ...

2024年6月10日 · The use of nuclear magnetic resonance (NMR) spectroscopy to study such effects, however, has seen relatively little attention. Here, we use $^{239}$Pu NMR to study the local influence of self-damage in a single crystal of the candidate topological insulator plutonium tetraboride (PuB$_{4}$).