Over the past 40 years, bis-chelated complexes of the type fac-[Re(a,?-diimine)(CO)3L]n+ (where L is a neutral or anionic type of ligand; n = 0 or 1) have received considerable attention due to the fact that they can act as electrocatalysts and photocatalysts. Research suggests that improved visible absorption and more favorable redox potentials can be obtained when moving from bis-chelated to tris-chelated polypyridines, such as 2,2':6',2?-terpyridine. Unfortunately, trischelated complexes often do not display room temperature luminescence and, until recently, no preparative routes existed for their coordination to rhenium.  The tris-chelated 2,6-bis(8'-quinolinyl)-pyridine (bqp) ligand has been shown to produce room temperature luminescence while absorbing significant portions of the visible spectrum with Ru(II), but no studies have been conducted for Re(I). Therefore, the coordination of 2,6-bis(8'-quinolinyl)-pyridine (bqp) ligand to form complexes of the type fac-[Re(?2-bqp)(CO)3L]n+ and cis-[Re(?3-bqp)(CO)2L]n+ was investigated.

Coordination of bqp on Rhenium(I)

243rd National Meeting (2012)

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