In order to target it for possible biosensor applications, the ferracarborane salt [NHMe3][Fe(3,1,2-C2B9H11)2] has been tested as an agent to quench the phosphorescence from the triplet state emission from the tris-bipyridyl ruthenium complex salt [Ru(k2-bipy)3][PF6]2. Linear Stern-Volmer plots from quenching experiments carried out in acetonitrile at ambient temperatures afforded a large quenching constant, suggesting that the ferracarborane complex is a considerably more sensitive quenching agent than the related and more ubiquitous ferrocene and its derivatives. In order to verify whether the quenching is static or dynamic in nature, quenching studies have been carried out in diglyme � a more viscous solvent - at ambient temperatures, and in acetonitrile at depressed temperatures (< 0 �C) � where intermolecular collisions are more restricted. Preliminary experiments suggest that the quenching is primarily static.

Study of a ferracarborane phosphorescence quenching agent

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.