Research Activities in the group.

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2(n)-SEMA- a sensitive and offset compensated SLF pulse sequence.
S. Jayanthi and K. V. Ramanathan J. Chem. Phys. 132, 134501 (2010)

    PISEMA and Effective field PISEMA pulse sequence                   2(4)-SEMA pulse sequence 2(4)-SEMA and Effective field PISEMA-1H-13C               2D-PISEMA 2(4)SEMA-1H-13C and 2(4)-SEMA spectra of N-acetyl-DL-valine single crystal                                                                                                     Sensitivity comparison Sensitivity Comparison - 15N-acetyl-DL-valine (submitted)

Visualization of Enantiomers in the Liquid Crystaline phase of fragmented DNA.

Sujay P Sau and K. V. Ramanathan, J. Phys. Chem B, 113, 1530, (2009).

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Alanine in DNA J-resolved

Reconstruction of solid state J-resolved experiments from 1D spectra

Bibhuti B Das, Avik Mitra and K.V. Ramanathan, Chem. Phys. Lett., 442, 474 (2007).

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Reconstruction Strategy reconstruction strategy

Invited review on Oriented Molecules : by K. V. Ramanathan, Nitin P Lobo and C. L. Khetrapal

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Review on oriented systems

DAPT a new heteronuclear polarization transfer pulse scheme without Hartmann-Hahn Match - for oriented systems.

S. Jayanthi, P. K. Madhu and K. V. Ramanathan, J. Phys. Chem A, 112, 11159, (2008).

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        DAPT 1D Pulse Scheme             DAPT-1D pulse sequence DAPT-2D pulse sequence DAPT-2D Pulse Sequence 2D SLF-PELF on EBBA     2D SLF-PELF Spectra cross-sections and 2D - Cross-Sections.: Liquid crystal EBBA                                                                                                             Offset variation under DAPT Off-set variation                                                                                                                                                                                                                                                                                                                                                                                                            

2H-13C Correlation using DAPT.

S. Jayanthi and K.V. Ramanathan, Volume 487, Issues 1-3, 25 February 2010, Pages 122-128.
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14N - OVERTONE in NAV single crystal : Excitation and Correlation using DAPT.

(S. Jayanthi, K. V. Ramanathan, Chem. Phys. Lett, submitted).
                                                Constant time DAPT constant time DAPT ADRF-DAPT 2D ADRF and DAPT

Utility of phase altered sequences in SLF- DOPA.

Bibhuti B Das, N. Sinha and K. V. Ramanathan, J. Magn. Reson., 194, 237, (2008).

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The Pulse Sequence DOPA

Improved pulse schemes for separated local field spectroscopy for static and spinning samples

Bibhuti B Das, T. G. Ajithkumar and K.V. Ramanathan, Solid State Nuclear Magnetic Resonance, 33, 57, (2008).

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The Pulse Sequence: EXE-MS2 Magic-Sandwich

Conformational mobility in an Alkyl chain of an Anchored bilayer

R. Suresh, N. Venkataraman, S. Vasudevan, and K.V. Ramanathan, J.Phys.Chem.C, 111, 495, (2007).

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13C MAS NMR of the anchored bilayer, Cd0.83PS3(CTA)0.34, at different temperatures (a) with cross-polarization (CP) and (b) without CP. The numbering of the carbon atoms along the length of the chain is indicated. (c) The intensity ratio of the 33 ppm resonance in the 13C MAS NMR without CP, I33/(I33 + I35), at different temperatures

updated @ 31' may-2010