Certain molecular organometallic compounds are capable of splitting water into dihydrogen and hydrogen peroxide. These compounds include CpMn(CO)3, [Mn(CO)3(µ3-OH)]4, and a [Ru-cis-(H)(CO){PNN}] complex. Water splitting mediated by these complexes require a photon since the process is thermodynamically uphill and they also require the coordination of water. Drawing upon these two principles – namely that an organometallic chromophore with water derived ligands is necessary for water-splitting – we have designed and synthesized new platforms from which to investigate chemical reactions and photochemical properties that relate to the manipulation of water molecules at single site organometallic complexes. These include new Mn(CO)3[POP] and [Ru-cis-(H)(CO){PNN}] pincer complexes and their synthesis and characterization is described in this presentation.

Developing Single-site organometallic complexes for photochemical water splitting

255th National Meeting (2018)

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