Ultrafast photoactivation of C─ H bonds inside water-soluble nanocages

A Das, I Mandal, R Venkatramani, J Dasgupta - Science Advances, 2019 - science.org
Light energy absorbed by molecules can be harnessed to activate chemical bonds with
extraordinary speed. However, excitation energy redistribution within various molecular …

Tuning light-driven oxidation of styrene inside water-soluble nanocages

S Ghosal, A Das, D Roy, J Dasgupta - Nature Communications, 2024 - nature.com
Selective functionalization of innate sp2 CH bonds under ambient conditions is a grand
synthetic challenge in organic chemistry. Here we combine host-guest charge transfer …

Tuning the ultrafast dynamics of photoinduced proton-coupled electron transfer in energy conversion processes

P Goyal, S Hammes-Schiffer - ACS Energy Letters, 2017 - ACS Publications
Photoinduced proton-coupled electron transfer (PCET) is essential for a wide range of
energy conversion processes in chemical and biological systems. Understanding the …

Trapping an Elusive Fe (IV)-Superoxo Intermediate Inside a Self-Assembled Nanocage in Water at Room Temperature

R Gera, P De, KK Singh, SAV Jannuzzi… - Journal of the …, 2024 - ACS Publications
Molecular cavities that mimic natural metalloenzymes have shown the potential to trap
elusive reaction intermediates. Here, we demonstrate the formation of a rare yet stable Fe …

Proton quantization and vibrational relaxation in nonadiabatic dynamics of photoinduced proton-coupled electron transfer in a solvated phenol-amine complex

P Goyal, CA Schwerdtfeger… - The Journal of …, 2016 - ACS Publications
Nonadiabatic dynamics simulations of photoinduced proton-coupled electron transfer
(PCET) in a phenol–amine complex in solution were performed. The electronic potential …

Role of solvent dynamics in photoinduced proton-coupled electron transfer in a phenol–amine complex in solution

P Goyal, S Hammes-Schiffer - The Journal of Physical Chemistry …, 2015 - ACS Publications
Photoinduced proton-coupled electron transfer (PCET) plays an essential role in a wide
range of energy conversion processes. Previous experiments on a phenol–amine complex …

Visible light driven hydrogen evolution by molecular nickel catalysts with time-resolved spectroscopic and DFT insights

XL Ho, H Shao, YY Ng, R Ganguly, Y Lu… - Inorganic …, 2019 - ACS Publications
Hydrogen (H2) is a clean fuel that can potentially be a future solution for the storage of
intermittent renewable energy. However, current H2 production is mainly dominated by the …

Unraveling Confined Dynamics of Guests Trapped in Self-Assembled Pd6L4 Nanocages by Ultrafast Mid-IR Polarization-Dependent Spectroscopy

R Gera, SL Meloni, JM Anna - The journal of physical chemistry …, 2019 - ACS Publications
Self-assembled coordination cages form host–guest complexes through weak noncovalent
interactions. Knowledge of how these weak interactions affect the structure, reactivity, and …

Photoactive anthraquinone-based host–guest assembly for long-lived charge separation

A Jha, KR Mote, S Chandra, PK Madhu… - The Journal of …, 2021 - ACS Publications
Porous 2D covalent organic frameworks (COF) that are assembled axially through weak π-
stacking interactions can provide reticular charge transport channels while playing host to …

Photochemistry using a host–guest charge transfer paradigm: DMABN as a dynamical probe of ground and excited states

R Gera, J Dasgupta - Physical Chemistry Chemical Physics, 2021 - pubs.rsc.org
Photoexciting charge transfer (CT) transitions arising from host–guest interactions in a
confined environment can efficiently yield kinetically trapped radicals. In order to predispose …