Issue 19, 2014

Preparation of RHgCl via transmetalation of (8-quinolyl)SnMe3 and redistribution to R2Hg (R = 8-quinolyl): a highly distorted diorganomercury(ii) with 84 degree C–Hg–C angle

Abstract

Transmetalation occurs upon addition of HgCl2 to (8-quinolyl)SnMe3 to yield (8-quinolyl)HgCl. The molecule features a frustrated Hg–N Lewis pair; however the mercury(II) center showed low affinity for sulfur Lewis bases, S8 or thiophene. In the presence of NH4SCN, ligand redistribution led to R2Hg. The molecule was found as linear or bent polymorphs, depending on the solvent of recrystallization. The geometry about Hg(II) in the bent polymorph is distorted trigonal prismatic that features a C–Hg–C angle of 84°, weak intramolecular Hg–N contacts, and two intermolecular η2-quinoline contacts in which the neighboring R2Hg molecule participates as a bis-η2-bidentate ligand.

Graphical abstract: Preparation of RHgCl via transmetalation of (8-quinolyl)SnMe3 and redistribution to R2Hg (R = 8-quinolyl): a highly distorted diorganomercury(ii) with 84 degree C–Hg–C angle

Supplementary files

Article information

Article type
Paper
Submitted
05 Feb 2014
Accepted
24 Feb 2014
First published
27 Mar 2014

Dalton Trans., 2014,43, 7139-7145

Preparation of RHgCl via transmetalation of (8-quinolyl)SnMe3 and redistribution to R2Hg (R = 8-quinolyl): a highly distorted diorganomercury(II) with 84 degree C–Hg–C angle

S. R. Tamang, J. Son and J. D. Hoefelmeyer, Dalton Trans., 2014, 43, 7139 DOI: 10.1039/C4DT00384E

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