2,2'-BIPYRIDYL-5-YLMETHYL)-1,4,7-TRIAZACYCLONONANE (L(1)), A POWERFULTRIS(2,2'-BIPYRIDYL) CHELATING MACROCYCLIC LIGAND - X-RAY STRUCTURE OF [RU(L(1)H)][PF6](3), A COMPLEX CONTAINING A STRONGLY TRAPPED PROTON

Authors
SHELDON P ERRINGTON W MOORE P RAWLE SC SMITH SM
Citation
P. Sheldon et al., 2,2'-BIPYRIDYL-5-YLMETHYL)-1,4,7-TRIAZACYCLONONANE (L(1)), A POWERFULTRIS(2,2'-BIPYRIDYL) CHELATING MACROCYCLIC LIGAND - X-RAY STRUCTURE OF [RU(L(1)H)][PF6](3), A COMPLEX CONTAINING A STRONGLY TRAPPED PROTON, Journal of the Chemical Society, Chemical Communications, (21), 1994, pp. 2489-2490
Citations number
15
Categorie Soggetti
Chemistry
Journal title
Journal of the Chemical Society, Chemical Communications → ACNP
ISSN journal
00224936
Issue
21
Year of publication
1994
Pages
2489 - 2490
Database
ISI
SICI code
0022-4936(1994):21<2489:2(AP>2.0.ZU;2-N
Abstract
A new powerful tris(2,2'-bipyridyl) chelating ligand, (2,2'-bipyridyl- 5-ylmethyl)1,4,7-triazacyclononane (L(1)), has been synthesised and ch aracterised, and an X-ray structure of [Ru(L(1)H)](3+) obtained; in th e complex all three bipyridyl groups are coordinated, with a fairly re gular octahedral Ru-II geometry, and although the azamacrocyclic nitro gen-atoms are non-coordinating to Ru-II, in aqueous solution they trap a single proton in the cavity between the macrocycle and the Ru-II, a nd which cannot be removed even at high pH.