Iron(II) Coordination Complexes with Panchromatic Absorption and Nanosecond Charge-Transfer Excited State Lifetimes
dc.contributor.author | Braun, Jason | |
dc.contributor.author | Lozada, Issiah | |
dc.contributor.author | Kolodziej, Charles | |
dc.contributor.author | Burda, Clemens | |
dc.contributor.author | Newman, Kelly M E | |
dc.contributor.author | van Lierop, Johan | |
dc.contributor.author | Davis, Rebecca L | |
dc.contributor.author | Herbert, David E | |
dc.date.accessioned | 2021-10-22T17:57:35Z | |
dc.date.available | 2021-10-22T17:57:35Z | |
dc.date.issued | 2019-11-18 | |
dc.date.submitted | 2021-10-17T01:32:37Z | en_US |
dc.description.abstract | Replacing current benchmark rare-element photosensitizers with ones based on abundant and low-cost metals such as iron would help facilitate the large-scale implementation of solar energy conversion. To do so, the ability to extend the lifetimes of photogenerated excited states of iron complexes is critical. Here, we present a sensitizer design in which iron(ii) centres are supported by frameworks containing benzannulated phenanthridine and quinoline heterocycles paired with amido donors. These complexes exhibit panchromatic absorption and nanosecond charge-transfer excited state lifetimes, enabled by the combination of vacant, energetically accessible heterocycle-based acceptor orbitals and occupied molecular orbitals destabilized by strong mixing between amido nitrogen atoms and iron. This finding shows how ligand design can extend metal-to-ligand charge-transfer-type excited state lifetimes of iron(ii) complexes into the nanosecond regime and expand the range of potential applications for iron-based photosensitizers. | en_US |
dc.description.sponsorship | Natural Sciences and Engineering Research Council of Canada (RGPIN-2014-03733) | en_US |
dc.identifier.citation | Nature Chemistry 2019, 11, 1144–1150 | en_US |
dc.identifier.doi | 10.1038/s41557-019-0357-z | |
dc.identifier.uri | http://hdl.handle.net/1993/36069 | |
dc.language.iso | eng | en_US |
dc.publisher | Nature Publishing Group | en_US |
dc.rights | open access | en_US |
dc.subject | Coordination Chemistry | en_US |
dc.subject | photophysics | en_US |
dc.title | Iron(II) Coordination Complexes with Panchromatic Absorption and Nanosecond Charge-Transfer Excited State Lifetimes | en_US |
dc.type | Preprint | en_US |
local.author.affiliation | Faculty of Science | en_US |