Iron(II) Coordination Complexes with Panchromatic Absorption and Nanosecond Charge-Transfer Excited State Lifetimes

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dc.contributor.authorBraun, Jason
dc.contributor.authorLozada, Issiah
dc.contributor.authorKolodziej, Charles
dc.contributor.authorBurda, Clemens
dc.contributor.authorNewman, Kelly M E
dc.contributor.authorvan Lierop, Johan
dc.contributor.authorDavis, Rebecca L
dc.contributor.authorHerbert, David E
dc.date.accessioned2021-10-22T17:57:35Z
dc.date.available2021-10-22T17:57:35Z
dc.date.issued2019-11-18
dc.date.submitted2021-10-17T01:32:37Zen_US
dc.description.abstractReplacing 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.sponsorshipNatural Sciences and Engineering Research Council of Canada (RGPIN-2014-03733)en_US
dc.identifier.citationNature Chemistry 2019, 11, 1144–1150en_US
dc.identifier.doi10.1038/s41557-019-0357-z
dc.identifier.urihttp://hdl.handle.net/1993/36069
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.rightsopen accessen_US
dc.subjectCoordination Chemistryen_US
dc.subjectphotophysicsen_US
dc.titleIron(II) Coordination Complexes with Panchromatic Absorption and Nanosecond Charge-Transfer Excited State Lifetimesen_US
dc.typePreprinten_US
local.author.affiliationFaculty of Scienceen_US
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