Arnab Chakraborty

Works (9)

Updated: May 28th, 2024 08:08

2023 article

Revealing Excited-State Trajectories on Potential Energy Surfaces with Atomic Resolution in Real Time

Leshchev, D., J. S. Valentine, A., Kim, P., Mills, A. W., Roy, S., Chakraborty, A., … Chen, L. X. X. (2023, May 31). ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Vol. 5.

By: D. Leshchev *, A. J. S. Valentine, P. Kim *, A. Mills *, S. Roy n, A. Chakraborty n, E. Biasin*, K. Haldrup * ...

author keywords: Excited States; Intersystem Crossing; Platinum; Transition-Metal Complexes; Ultrafast Spectroscopy
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7. Affordable and Clean Energy (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: June 12, 2023

2021 journal article

Excited-State Bond Contraction and Charge Migration in a Platinum Dimer Complex Characterized by X-ray and Optical Transient Absorption Spectroscopy

JOURNAL OF PHYSICAL CHEMISTRY A, 125(40), 8891–8898.

By: N. Weingartz *, M. Mara *, S. Roy n, J. Hong *, A. Chakraborty n, S. Brown-Xu *, B. Phelan *, F. Castellano n , L. Chen *

TL;DR: Electronic and nuclear structural dynamics studies of two photoexcited pyrazolate-bridged Pt(II) dimers observe photoinduced electron transfer in 2 featuring a covalently linked NDI acceptor on the ppy ligand, demonstrating how the excited states of these complexes are determined by the overlap of the Pt (dz2) orbitals. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 2, 2021

2021 journal article

Understanding the influence of geometric and electronic structure on the excited state dynamical and photoredox properties of perinone chromophores

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 23(42), 24200–24210.

By: K. Wells n, J. Palmer  n, J. Yarnell n, S. Garakyaraghi n, B. Pemberton  n, J. Favale n, M. Valchar n, A. Chakraborty n, F. Castellano n 

TL;DR: A series of eight similarly structured perinone chromophores were synthesized and photophysically characterized to elucidate the electronic and structural tunability of their excited state properties, including excited state redox potentials and fluorescence lifetimes/quantum yields, and will be valuable for future use in photofunctional applications. (via Semantic Scholar)
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Added: October 26, 2021

2020 journal article

A STATISTICAL ANALYSIS OF NOISY CROWDSOURCED WEATHER DATA

ANNALS OF APPLIED STATISTICS, 14(1), 116–142.

By: A. Chakraborty n, S. Lahiri* & A. Wilson n 

author keywords: Veracity score; geostatistics; robust kriging; hyperlocal spatial prediction
TL;DR: A reliability metric, namely Veracity Score (VS), is introduced to assess the quality of the crowdsourced observations using a coarser, but high-quality, reference data to improve hyper-local spatial prediction using this varying-quality noisy crowdsourced information. (via Semantic Scholar)
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2. Zero Hunger (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: May 8, 2020

2018 journal article

Coherent Vibrational Wavepacket Dynamics in Platinum(II) Dimers and Their Implications

The Journal of Physical Chemistry C, 122(25), 14195–14204.

By: P. Kim *, M. Kelley*, A. Chakraborty n, N. Wong*, R. Van Duyne *, G. Schatz *, F. Castellano n , L. Chen *

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Added: August 6, 2018

2018 journal article

Excited-State Processes of Cyclometalated Platinum(II) Charge-Transfer Dimers Bridged by Hydroxypyridines

Inorganic Chemistry, 57(3), 1298–1310.

By: A. Chakraborty n, J. Yarnell n, R. Sommer n , S. Roy n & F. Castellano n 

TL;DR: The combined data illustrate that entirely new classes of MMLCT chromophores can be envisioned using bridging pyridyl hydroxides in cooperation with various C^N cyclometalates to achieve photophysical properties suitable for excited-state electron- and energy-transfer chemistry. (via Semantic Scholar)
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Added: August 6, 2018

2018 journal article

Long-lived triplet excited state in a platinum(ii) perylene monoimide complex

DALTON TRANSACTIONS, 47(42), 15071–15081.

By: J. Yarnell n, A. Chakraborty n, M. Myahkostupov n, K. Wright  n & F. Castellano n 

TL;DR: The synthesis and solution based photophysical properties of a new Pt(ii)-terpyridine complex coupled to a perylene monoimide (PMI) chromophoric unit through an acetylene linkage resulted in quantitative quenching of the highly fluorescent PMI chromophore by introducing metal character into the lowest energy singlet state, thereby leading to the formation of a long-lived PMI-ligand localized triplet excited state. (via Semantic Scholar)
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Added: November 26, 2018

2018 journal article

Temperature dependence of photophysical properties of a dinuclear CCN-cyclometalated Pt(II) complex with an intimate Pt-Pt contact. Zero-field splitting and sub-state decay rates of the lowest triplet

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 20(38), 25096–25104.

By: J. Deaton n, A. Chakraborty n, R. Czerwieniec *, H. Yersin * & F. Castellano n 

TL;DR: The temperature dependence (1.7 K < T < 100 K) of emission decay is reported for the first time for a type of di-nuclear Pt complex featuring a metal-metal-to-ligand charge transfer (MMLCT) lowest energy transition that arises from a strong Pt-Pt interaction. (via Semantic Scholar)
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Added: November 26, 2018

2016 journal article

Butterfly Deformation Modes in a Photoexcited Pyrazolate-Bridged Pt Complex Measured by Time-Resolved X-Ray Scattering in Solution

JOURNAL OF PHYSICAL CHEMISTRY A, 120(38), 7475–7483.

By: K. Haldrup *, A. Dohn *, M. Shelby *, M. Mara *, A. Stickrath, M. Harpham, J. Huang, X. Zhang ...

Contributors: K. Haldrup *, A. Dohn *, M. Shelby *, M. Mara *, A. Stickrath, M. Harpham, J. Huang, X. Zhang ...

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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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