Observation of 201Hg NMR spectra for solid K2Hg(CN)4

✍ Scribed by Gang Wu; Roderick E. Wasylishen

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 332 KB
• Volume: 31
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1260310604

✦ Synopsis

Abstract

The first observation of ^201^Hg NMR signals in the solid state is reported for potassium tetracyanomercurate(II), K~2~Hg(CN)~4~. NMR measurements of ^201^Hg and ^199^Hg were carried out at 4.70, 7.05 and 9.40 T. The ratio between the observed NMR frequency for ^201^Hg and ^119^Hg yields an accurate value for the ratio of their magnetogyric ratios, |γ(^201^Hg)/γ(^199^Hg) | = 0.369 1389(9). This value agrees well with that obtained from optical pumping experiments on mercury vapor in the gas phase. The ^201^Hg NMR line shapes observed for solid K~2~Hg(CN)~4~ are Lorentzian owing to efficient relaxation via the quadrupolar mechanism. In contrast, the corresponding ^199^Hg NMR line shapes are Gaussian and much narrower.