PITANSEMA, a low-power PISEMA solid-state NMR experiment

D. K. Lee; T. Narasimhaswamy; A. Ramamoorthy

doi:10.1016/j.cplett.2004.10.017

PITANSEMA, a low-power PISEMA solid-state NMR experiment

D. K. Lee, T. Narasimhaswamy, A. Ramamoorthy

Dept. of Fine Chemistry

University of Michigan, Ann Arbor

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

A low radio frequency power polarization inversion spin exchange at the magic angle (PISEMA) pulse sequence is described for the measurement of heteronuclear dipolar couplings from solids. The method employs a time averaged nutation concept to significantly reduce the rf power required to spin-lock low γ nuclear spins in PISEMA experiments. The efficacy of the 2D method is demonstrated on a single crystal of n-acetyl-l- ¹⁵N-valyl-l- ¹⁵N-leucine dipeptide to measure ¹H- ¹⁵N dipolar couplings and a liquid crystal sample to measure ¹H- ¹³C dipolar couplings.

Original language	English
Pages (from-to)	359-362
Number of pages	4
Journal	Chemical Physics Letters
Volume	399
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2004.10.017
State	Published - 1 Dec 2004

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abstract = "A low radio frequency power polarization inversion spin exchange at the magic angle (PISEMA) pulse sequence is described for the measurement of heteronuclear dipolar couplings from solids. The method employs a time averaged nutation concept to significantly reduce the rf power required to spin-lock low γ nuclear spins in PISEMA experiments. The efficacy of the 2D method is demonstrated on a single crystal of n-acetyl-l- 15N-valyl-l- 15N-leucine dipeptide to measure 1H- 15N dipolar couplings and a liquid crystal sample to measure 1H- 13C dipolar couplings.",

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AU - Ramamoorthy, A.

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Y1 - 2004/12/1

N2 - A low radio frequency power polarization inversion spin exchange at the magic angle (PISEMA) pulse sequence is described for the measurement of heteronuclear dipolar couplings from solids. The method employs a time averaged nutation concept to significantly reduce the rf power required to spin-lock low γ nuclear spins in PISEMA experiments. The efficacy of the 2D method is demonstrated on a single crystal of n-acetyl-l- 15N-valyl-l- 15N-leucine dipeptide to measure 1H- 15N dipolar couplings and a liquid crystal sample to measure 1H- 13C dipolar couplings.

AB - A low radio frequency power polarization inversion spin exchange at the magic angle (PISEMA) pulse sequence is described for the measurement of heteronuclear dipolar couplings from solids. The method employs a time averaged nutation concept to significantly reduce the rf power required to spin-lock low γ nuclear spins in PISEMA experiments. The efficacy of the 2D method is demonstrated on a single crystal of n-acetyl-l- 15N-valyl-l- 15N-leucine dipeptide to measure 1H- 15N dipolar couplings and a liquid crystal sample to measure 1H- 13C dipolar couplings.

UR - https://www.scopus.com/pages/publications/10944241102

U2 - 10.1016/j.cplett.2004.10.017

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SP - 359

EP - 362

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

PITANSEMA, a low-power PISEMA solid-state NMR experiment

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