9Be nuclear magnetic resonance spectroscopy trends in discrete complexes: an update
- Resource Type
- Article
- Authors
- Buchanan, Jenna K.; Plieger, Paul G.
- Source
- Zeitschrift für Naturforschung B; May 2020, Vol. 75 Issue: 5 p459-472, 14p
- Subject
- Language
- ISSN
- 09320776; 18657117
9Be solution NMR spectroscopy is a useful tool for the characterisation of beryllium complexes. An updated comprehensive table of the 9Be NMR chemical shifts of beryllium complexes in solution is presented. The recent additions span a greater range of chemical shifts than those previously reported, and more overlap is observed between the chemical shift regions of four-coordinate complexes and those with lower coordination numbers. Four-coordinate beryllium species have smaller ω1/2values than the two- and three-coordinate species due to their higher order symmetry. In contrast to previous studies, no clear relationship is observed between chemical shift and the size and number of chelate rings.