Attachment of Chelating Ligand Pockets to Tinorganyl Moieties

Abstract

Several approaches have been undertaken to realize the synthesis of a new tinorganyl compound with a 2,2Ј,6Ј,2ЈЈ-terpyridine moiety. A synthesis pathway consisting of five steps with an overall yield of 51 % was successful in producing Ph 3 Sn(CH 2 ) 3 OPhttpy [HOttpy = 2,6-bis(2Ј-pyridyl)-4Ј-(phydroxyphenyl)pyridine], and insight has been gained into (partial) halogenation reactions with this unprecedented tinorganyl compound. Halogenation with hydroiodic acid2406 produced a new dinuclear complex cation that resulted from head-to-tail coordination of two monocations. Furthermore, synthesis and yields of already known intermediates have been optimized. The products were analyzed and identified by 119 Sn NMR, 1 H NMR, and 13 C NMR spectroscopy and ESI mass spectrometry, as well as by means of single-crystal Xray diffraction.Supporting Information (see footnote on the first page of this article): Further details on single-crystal X-ray crystallography, electrospray ionization (ESI), mass spectrometry, nuclear magnetic reso-Eur.2410 nance (NMR) spectroscopy, energy dispersive X-ray (EDX) spectroscopy, and on the synthesis of 3.

The chemistry of the s- and p-block elements with 2,2′:6′,2′′-terpyridine ligands

“…27). 268 One might assume that the metallomacrocycle 26 represented the thermodynamically favored product, but the assembly into oligomeric or even polymeric species is also likely. However, those authors did not address this issue.…”