Synthesis and structural characterization of carborane-containing neutral, self-assembled Pt-metallacycles

Neeladri Das; Peter J Stang; Atta M Arif; Charles F Campana

doi:10.1021/jo0517085

Synthesis and structural characterization of carborane-containing neutral, self-assembled Pt-metallacycles

J Org Chem. 2005 Dec 9;70(25):10440-6. doi: 10.1021/jo0517085.

Authors

Neeladri Das¹, Peter J Stang, Atta M Arif, Charles F Campana

Affiliation

¹ Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA.

PMID: 16323855
DOI: 10.1021/jo0517085

Abstract

[structure: see text] We have combined carborane chemistry with the newly developed directional bonding strategy to synthesize neutral macrocycles. The m- and p-carborane dicarboxylates were utilized as the donor linkers in conjunction with 1,8-bis[trans-Pt(PEt3)2NO3]anthracene 3, 2,9-bis[trans-Pt(PEt3)2NO3]phenanthrene 5, and cis-Pt(PEt3)2(NO3)2 unit 6. Three new platinum-based macrocycles, 4, 7, and 8, were thus synthesized. 31P{1H} NMR as well as the X-ray characterization of Pt-metallacycles reveal the formation of single highly symmetrical neutral species.