We have been studying the covalent binding to composite surfaces of a series of ruthenium complexes containing diimine ligands such as bipyridyl or phenanthroline ligands1 as well as NNN or PONPO pincer ligands in addition to the ancillary ligands L2, CO, H, Cl, and TFA (L2 = 2PR3 or R2PCH=CHPR2; TFA = trifluoroacetic acid) in various combinations (see Figure 1).  We have studied their photophysical properties with a view towards developing them as surface bound photo-activated species for applications in catalysis and optical devices.  Immobilization has a dramatic effect on the excited state lifetimes of most of the complexes but not on the wavelength of the absorbed or emitted light.  Preliminary studies of the light induced reactivity of the complexes will be presented. 1. E. Rosenberg, et. al.  J. Organmetal. Chem. (2009) 694 , 988.

Transition metal complexes immobilized on nano-porous silica-polyamine composites

243rd National Meeting (2012)

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