N
Narayanan Chandrakumar
Researcher at Indian Institute of Technology Madras
Publications - 26
Citations - 176
Narayanan Chandrakumar is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Homonuclear molecule & Pulse sequence. The author has an hindex of 7, co-authored 26 publications receiving 131 citations.
Papers
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Developmental patterning and segregation of alkaloids in areca nut (seed of Areca catechu) revealed by magnetic resonance and mass spectrometry imaging.
Amitava Srimany,Christy George,Hemanta R. Naik,Danica Glenda Pinto,Narayanan Chandrakumar,Thalappil Pradeep +5 more
TL;DR: It is revealed that white and brown regions start forming within the nut when the liquid within starts solidifying, and the transport of molecules with maturity and corresponding pattern formation are expected to be associated with a multitude of physiochemical changes.
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Chemical-shift-resolved ¹⁹F NMR spectroscopy between 13.5 and 135 MHz: Overhauser-DNP-enhanced diagonal suppressed correlation spectroscopy.
TL;DR: Overhauser-DNP-enhanced homonuclear 2D (19)F correlation spectroscopy with diagonal suppressed 2D NMR correlations emerge despite the general lack of multiplet resolution in the 1D ODNP spectra.
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Lithium Speciation in the LiPF6/PC Electrolyte Studied by Two-Dimensional Heteronuclear Overhauser Enhancement and Pulse-Field Gradient Diffusometry NMR
Vikas Bajpai Awantika Singh Sunil Kumar,R. Ravikanth Reddy,B. V. N. Phani Kumar,C. V. Avadhani,Subramanian Ganapathy,Narayanan Chandrakumar,Swaminathan Sivaram +6 more
TL;DR: In this paper, the site-dependent cross-relaxation rates for the spatial interaction of the solvent with the Li+ cation and the PF6-anion were determined using very strong pulsed magnetic field gradients (∼1700 Gauss/cm).
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Postharvest ripening study of sweet lime (Citrus limettioides) in situ by volume-localized NMR spectroscopy.
TL;DR: This work demonstrates that the molecular imprint of the process may be tracked noninvasively by VLS, including a comparative study of normal and acetylene-mediated ripening of sweet lime.
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Optimized 1D double quantum filter NMR experiments.
V. Ramesh,Narayanan Chandrakumar +1 more
TL;DR: A 1D pulse sequence is proposed and demonstrated to convert double quantum coherence (DQC) of y phase with optimal efficiency, relying on single transition selection, and has a larger high‐sensitivity bandwidth with respect to the coupling, compared to other reconversion strategies.