Catherine Emily McCusker

Works (8)

Updated: July 28th, 2023 06:40

2016 journal article

Cuprous Phenanthroline MLCT Chromophore Featuring Synthetically Tailored Photophysics

INORGANIC CHEMISTRY, 55(20), 10628–10636.

By: S. Garakyaraghi n, P. Crapps n, C. McCusker n & F. Castellano n 

Contributors: S. Garakyaraghi n, P. Crapps n, C. McCusker n & F. Castellano n 

TL;DR: The disparity in the time scales of pseudo-Jahn-Teller distortion and intersystem crossing between two complexes with different anticipated excited-state geometries suggests that strongly impeded structural distortion in the MLCT excited state enables more rapid surface crossings in the initial deactivation dynamics. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 journal article

Exposing the Excited-State Equilibrium in an Ir-III Bichromophore: A Combined Time Resolved Spectroscopy and Computational Study

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2016(12), 1808–1818.

By: J. Yarnell n, C. McCusker n, A. Leeds*, J. Breaux* & F. Castellano n 

Contributors: J. Yarnell n, C. McCusker n, A. Leeds*, J. Breaux* & F. Castellano n 

author keywords: Iridium; Chromophores; Luminescence; Photophysics; Electronic structure; Density functional calculations; Triplet states; Transient absorption kinetics
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 review

Materials Integrating Photochemical Upconversion

[Review of ]. TOPICS IN CURRENT CHEMISTRY, 374(2).

By: C. McCusker n & F. Castellano n 

author keywords: Photochemical upconversion; Triplet-triplet Annihilation; Wavelength shifting; Light emitting materials; Solid state upconversion; Soft photonic materials
TL;DR: This review features recent experimental work focused on the preparation and characterization of materials that integrate photochemical upconversion derived from sensitized triplet–triplet annihilation, resulting in the conversion of low energy photons to higher energy light, thereby enabling numerous wavelength-shifting applications. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Efficient Visible to Near-UV Photochemical Upconversion Sensitized by a Long Lifetime Cu(I) MLCT Complex

INORGANIC CHEMISTRY, 54(12), 6035–6042.

By: C. McCusker n & F. Castellano n 

Contributors: C. McCusker n & F. Castellano n 

TL;DR: Photochemical upconversion quantum efficiencies were evaluated using a relative actinometric method as both a function of incident light power density as well as anthryl acceptor/annihilator concentration and the combination of 1 with DMA was shown to be quite robust, showing no obvious signs of decomposition during 12 h of continuous 488 nm photolysis. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

MLCT sensitizers in photochemical upconversion: past, present, and potential future directions

DALTON TRANSACTIONS, 44(41), 17906–17910.

By: F. Castellano n  & C. McCusker n

Contributors: F. Castellano n  & C. McCusker n

TL;DR: This treatment highlights the historical development of MLCT sensitizers in photochemical upconversion while indentifying current state-of-the-art and exciting opportunities in this arena moving towards the future. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Transient Absorption Dynamics of Sterically Congested Cu(I) MLCT Excited States

JOURNAL OF PHYSICAL CHEMISTRY A, 119(13), 3181–3193.

By: S. Garakyaraghi n, E. Danilov n , C. McCusker n & F. Castellano n 

Contributors: S. Garakyaraghi n, E. Danilov n , C. McCusker n & F. Castellano n 

TL;DR: The molecule with the most inhibited potential for distortion, [Cu(dsbtmp)2](+), possessed the fastest ultrafast dynamics as well as the longest excited state lifetimes in both solvents, illustrating that strongly impeded structural distortion in Cu(I) MLCT excited state enables more rapid surface crossings in the initial deactivation dynamics. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

Excited State Equilibrium Induced Lifetime Extension in a Dinuclear Platinum(II) Complex

The Journal of Physical Chemistry A, 118(45), 10391–10399.

By: C. McCusker n, A. Chakraborty * & F. Castellano n 

Contributors: C. McCusker n, A. Chakraborty * & F. Castellano n 

TL;DR: This structural modification introduces low-lying PNI-based triplet states serving as long-lived triplet population reservoirs, thermally capable of repopulating the charge transfer state at room temperature (RT), thereby extending its excited state lifetime. (via Semantic Scholar)
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Sources: Web Of Science, Crossref, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

Triplet State Formation in Homo- and Heterometallic Diketopyrrolopyrrole Chromophores

INORGANIC CHEMISTRY, 53(23), 12564–12571.

By: C. McCusker n, D. Hablot*, R. Ziessel* & F. Castellano n 

Contributors: C. McCusker n, D. Hablot*, R. Ziessel* & F. Castellano n 

TL;DR: Steady-state and time-resolved photoluminescence along with transient absorption measurements were used to probe the nature of the emissive and long-lived excited states of diketopyrrolopyrrole complexes. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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