HG-199 CHEMICAL SHIELDING TENSER OF THE MERCUROUS ION IN MERCUROUS NITRATE DIHYDRATE

Citation
Ra. Santos et Gs. Harbison, HG-199 CHEMICAL SHIELDING TENSER OF THE MERCUROUS ION IN MERCUROUS NITRATE DIHYDRATE, Journal of the American Chemical Society, 116(7), 1994, pp. 3075-3077
Citations number
20
Categorie Soggetti
Chemistry
ISSN journal
00027863
Volume
116
Issue
7
Year of publication
1994
Pages
3075 - 3077
Database
ISI
SICI code
0002-7863(1994)116:7<3075:HCSTOT>2.0.ZU;2-6
Abstract
Using single-crystal NMR, we have measured the full chemical shielding tensor of the Hg-2(2+) ion in mercurous nitrate dihydrate, the first tenser determination of a metallic species involved in a metal-metal b ond. The tenser is almost axially symmetric; its unique element is dir ected approximately along the long axis of the diaquomercurous ion, bu t it lies closer to the ligand metal axis than the metal-metal bond. T he shielding anisotropy of mercury is, as would be expected for a line ar mercury compound, quite large (3203 ppm).