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Use of 45° pulse pair as a filter for pure-phase two-dimensional NMR spectroscopy

Murali, N and Chandrasekhar, K and Kumar, Anil (1986) Use of 45° pulse pair as a filter for pure-phase two-dimensional NMR spectroscopy. In: Journal of Magnetic Resonance, 70 (1). 153 -156.

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Conventionally two-dimensional NMR spectra are recorded in the absolute-intensity mode (1-4). It has recently been demonstrated that absorption-mode 2D spectra have much higher resolution and are the preferred mode of presentation, especially for 2D spectra of biomolecules (5-7). Indeed, any experimental scheme which yields phasemixed lineshapes is subject to modification to yield pure-phase spectra, even at the expense of intensity and anomalous multiplet structure (8-10). For this purpose two types of filters are already known: the z filter (9, 20) and the purging pulse (8, 10). In this note, we propose a 45” pulse pair as a filter for obtaining pure-phase 2D spectra, mainly for experiments in which the above filters do not yield pure-phase spectra.

Item Type: Journal Article
Publication: Journal of Magnetic Resonance
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 22 Jan 2010 08:58
Last Modified: 19 Sep 2010 05:34
URI: http://eprints.iisc.ac.in/id/eprint/20822

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