Control of reactivity and selectivity in isomerization and rearrangement reactions inside confined spaces

K Kanagaraj, J Rebek, Y Yu - Chemical Communications, 2023 - pubs.rsc.org
In the confined space of supramolecular systems, the substrate can be forced into a reactive
conformation and labile intermediates may be stabilized while isolated from the bulk …

Ultrafast excited state dynamics of spatially confined organic molecules

V Ramamurthy, P Sen, CG Elles - The Journal of Physical …, 2022 - ACS Publications
This Feature Article highlights the role of spatial confinement in controlling the fundamental
behavior of molecules. Select examples illustrate the value of using space as a tool to …

Structure, Dynamics, and Reactivity of Encapsulated Molecules in Restricted Spaces: Arylazoisoxazoles within an Octa Acid Capsule

AS Sunny, EC Cleven, P Kumar, S Venkataramani… - Langmuir, 2024 - ACS Publications
In this study, a well-defined organic capsule assembled from two octa acid (OA) molecules
acting as host and select arylazoisoxazoles (AAIO) acting as guests were employed to …

Remote electron and energy transfer sensitized photoisomerization of encapsulated stilbenes

R Varadharajan, AM Raj, V Ramamurthy - … & Photobiological Sciences, 2020 - Springer
Excited state chemistry and physics of molecules, in addition to their inherent electronic and
steric features, depend on their immediate microenvironments. This study explores the …

A One-Dimensional Phase-Modulated (PM) NMR Experiment for Differentiating Spin Systems in Small Molecules Mixtures: With Application to Chiral Discrimination …

AK Patel, D Joseph, HS Atreya… - Analytical …, 2022 - ACS Publications
A one-dimensional phase-modulated NMR experiment, which distinguishes the partially
resolved peaks and accelerates the data acquisition due to reduced dimensionality, is …

Role of supramolecular steric compression during photoinduced intramolecular hydrogen abstraction reactions of ketones and thioketones

D Khadka, R Kulasekharan, V Ramamurthy - Journal of Photochemistry and …, 2023 - Elsevier
Excited state behavior of molecules is influenced by the environment in which they are
present. The influence of solvents on reactions is understood in terms of the bulk properties …

Confined molecules: experiment meets theory in small spaces

Y Yu, J Rebek - Quarterly Reviews of Biophysics, 2020 - cambridge.org
The behavior of molecules confined to small spaces is fascinating chemistry and lies at the
heart of signaling processes in biology. Our approach to confinement is through reversible …

Controlling excited state chemistry of organic molecules in water through incarceration

V Ramamurthy - … in Confined Systems: Theory, Modelling and …, 2021 - Wiley Online Library
The behavior of molecules become more selective as the medium become more restrictive–
gas phase to solution to protein to solids. This chapter provides a glimpse of efforts in …

An Organic Capsule as a Matrix to Capture and Store Reactive Molecules at Room Temperature in Aqueous Solution: 7‐cis‐β‐Ionone

AS Sunny, V Ramamurthy - Photochemistry and photobiology, 2021 - Wiley Online Library
Low‐temperature m atrix isolation method is the most popular one to generate and store
reactive molecules and characterize them by in situ IR spectroscopy. Recognizing the need …

Photochemistry, chemiluminescence and dark photochemistry: computational advances (2018–2019)

D Roca-Sanjuán, J Carmona-García, BW Ding… - 2020 - books.rsc.org
Recent progress (2018–2019) in the field of quantum chemistry applied to the excited
electronic state are presented in this book chapter. General developments of methods and …