Time-resolved resonance Raman spectroscopy: exploring reactive intermediates

SK Sahoo, S Umapathy, AW Parker - Applied Spectroscopy, 2011 - opg.optica.org
The study of reaction mechanisms involves systematic investigations of the correlation
between structure, reactivity, and time. The challenge is to be able to observe the chemical …

Understanding ultrafast dynamics of conformation specific photo-excitation: a femtosecond transient absorption and ultrafast Raman loss study

K Roy, S Kayal, V Ravi Kumar, A Beeby… - The Journal of …, 2017 - ACS Publications
Excited state ultrafast conformational reorganization is recognized as an important
phenomenon that facilitates light-induced functions of many molecular systems. This report …

Iodide··· π interactions of perhalogenated quinoid rings in co-crystals with organic bases

K Molcanov, G Mali, J Grdadolnik, J Stare… - Crystal growth & …, 2018 - ACS Publications
First anion··· π contacts with quinoid rings have been described in novel co-crystals of
tetrabromo-and tetrachloroquinone with iodide salts of substituted N-methylpyridinium …

Molecular structures, FT-IR and FT-Raman spectra, NBO analysis, NLO properties, reactive sites and quantum chemical calculations of keto–enol tautomerism (2 …

V Balachandran, K Parimala - Spectrochimica Acta Part A: Molecular and …, 2013 - Elsevier
The keto–enol tautomerism of 2-amino-4-pyrimidinol (APN) and 2-amino-pyrimidine-4 (1H)-
one (APO) are investigated by vibrational spectroscopy and quantum chemical method. FT …

Direct observation of thermal equilibrium of excited triplet states of 9, 10-phenanthrenequinone. a time-resolved resonance raman study

VR Kumar, N Rajkumar, F Ariese… - The Journal of Physical …, 2015 - ACS Publications
The photochemistry of aromatic ketones plays a key role in various physicochemical and
biological processes, and solvent polarity can be used to tune their triplet state properties …

Density functional theoretical modeling, electrostatic surface potential and surface enhanced Raman spectroscopic studies on biosynthesized silver nanoparticles …

S Sil, D Chaturvedi, KB Krishnappa… - The Journal of …, 2014 - ACS Publications
Interaction of adsorbate on charged surfaces, orientation of the analyte on the surface, and
surface enhancement aspects have been studied. These aspects have been explored in …

Time-dependent density functional theory for resonant properties: resonance enhanced Raman scattering from the complex electric-dipole polarizability

A Mohammed, H Ågren, P Norman - Physical Chemistry Chemical …, 2009 - pubs.rsc.org
Based on resonant-convergent—and thereby complex—electric-dipole polarizabilities,
formulae for differential cross sections in resonant Raman spectroscopy are presented. In …

Solvatochromism of 9, 10-phenanthrenequinone: An electronic and resonance Raman spectroscopic study

V Ravi Kumar, N Rajkumar, S Umapathy - The Journal of Chemical …, 2015 - pubs.aip.org
Solvent effects play a vital role in various chemical, physical, and biological processes. To
gain a fundamental understanding of the solute-solvent interactions and their implications …

Resonance enhanced Raman scattering from the complex electric-dipole polarizability: A theoretical study on N2

A Mohammed, H Ågren, P Norman - Chemical Physics Letters, 2009 - Elsevier
An expression for resonant molecular Raman scattering in terms of the complex electric-
dipole polarizability tensor is presented and implemented with first principles complex …

Solvent effects on the structure of the triplet excited state of xanthone: a time‐resolved resonance Raman study

V Ravi Kumar, S Umapathy - Journal of Raman Spectroscopy, 2016 - Wiley Online Library
Solvent effects, especially intermolecular hydrogen bonding, play a central role in the
photophysics and photochemistry of aromatic ketones. To gain insight into the solute …