Effects of inherent rf field inhomogeneity on heteronuclear decoupling in solid-state NMR
作者： Rudra N. Purusottam , Geoffrey Bodenhausen , Piotr Tekely
DOI: 10.1016/J.CPLETT.2015.06.051
关键词:
摘要: Abstract Efficient heteronuclear decoupling is essential to obtain high-resolution NMR spectra of organic and biological solids containing protons low-gamma nuclei such as carbon-13. All modern sequences employ pulse lengths that are optimized for a given radio-frequency ( rf ) power. However, there an unavoidable distribution field amplitudes across the volume sample. Inevitably, effect manifests itself fully packed rotors during any irradiation. In this study we present detailed analysis inherent inhomogeneity on by low-power phase-inverted supercycled sequence attenuation rotary resonance (PISSARRO). This reveals potential further improvements its efficiency.
elsevier.com
sci-hub.se 参考文章(18)
Andrew E. Bennett, Chad M. Rienstra, Michèle Auger, K. V. Lakshmi, Robert G. Griffin, Heteronuclear decoupling in rotating solids The Journal of Chemical Physics. ,vol. 103, pp. 6951- 6958 ,(1995) , 10.1063/1.470372
P. Tekely, P. Palmas, D. Canet, Effect of Proton Spin Exchange on the Residual 13C MAS NMR Linewidths. Phase-Modulated Irradiation for Efficient Heteronuclear Decoupling in Rapidly Rotating Solids Journal of Magnetic Resonance, Series A. ,vol. 107, pp. 129- 133 ,(1994) , 10.1006/JMRA.1994.1059
Asif Equbal, Subhradip Paul, Venus Singh Mithu, Joachim M. Vinther, Niels Chr. Nielsen, P.K. Madhu, r TPPM: towards improving solid-state NMR two-pulse phase-modulation heteronuclear dipolar decoupling sequence by refocusing. Journal of Magnetic Resonance. ,vol. 244, pp. 68- 73 ,(2014) , 10.1016/J.JMR.2014.04.009
Markus Weingarth, Piotr Tekely, Geoffrey Bodenhausen, Efficient heteronuclear decoupling by quenching rotary resonance in solid-state NMR Chemical Physics Letters. ,vol. 466, pp. 247- 251 ,(2009) , 10.1016/J.CPLETT.2008.10.041
Markus Weingarth, Geoffrey Bodenhausen, Piotr Tekely, Probing the quenching of rotary resonance by PISSARRO decoupling Chemical Physics Letters. ,vol. 502, pp. 259- 265 ,(2011) , 10.1016/J.CPLETT.2010.12.040
Vipin Agarwal, Tiit Tuherm, Andres Reinhold, Jaan Past, Ago Samoson, Matthias Ernst, Beat H. Meier, Amplitude-modulated low-power decoupling sequences for fast magic-angle spinning NMR Chemical Physics Letters. ,vol. 583, pp. 1- 7 ,(2013) , 10.1016/J.CPLETT.2013.07.073
Mikhail Veshtort, Robert G. Griffin, SPINEVOLUTION: A powerful tool for the simulation of solid and liquid state NMR experiments Journal of Magnetic Resonance. ,vol. 178, pp. 248- 282 ,(2006) , 10.1016/J.JMR.2005.07.018
T. G. Oas, R. G. Griffin, M. H. Levitt, Rotary resonance recoupling of dipolar interactions in solid‐state nuclear magnetic resonance spectroscopy Journal of Chemical Physics. ,vol. 89, pp. 692- 695 ,(1988) , 10.1063/1.455191
Joachim M Vinther, Anders B Nielsen, Morten Bjerring, Ernst RH van Eck, Arno PM Kentgens, Navin Khaneja, Niels Chr Nielsen, None, Refocused continuous-wave decoupling: a new approach to heteronuclear dipolar decoupling in solid-state NMR spectroscopy. Journal of Chemical Physics. ,vol. 137, pp. 214202- 214202 ,(2012) , 10.1063/1.4768953
Zhehong Gan, R.R. Ernst, Frequency- and phase-modulated heteronuclear decoupling in rotating solids. Solid State Nuclear Magnetic Resonance. ,vol. 8, pp. 153- 159 ,(1997) , 10.1016/S0926-2040(96)01294-5