Technique for Importing Greater Evolution Resolution in Multidimensional NMR Spectrum
✍ Scribed by Gary McGeorge; Jian Zhi Hu; Charles L. Mayne; D.W. Alderman; Ronald J. Pugmire; David M. Grant
- Book ID
- 102594523
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 332 KB
- Volume
- 129
- Category
- Article
- ISSN
- 1090-7807
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✦ Synopsis
A very simple and general procedure that extracts constant- Manassen et al. (5) first proposed in 1987 that information evolution-frequency data from a truncated multidimensional (2D, from 1D spectra could be transferred into the analysis of 2D 3D, 4D, etc.) FID is described, generalized, analyzed, and illusdata with linear least-squares procedures. In the meantime trated. The method replaces Fourier transformation of the evolumuch attention has been focused on linear prediction (6) and tion dimension with a linear model created from a separate, highmaximum entropy (7) as a means of increasing resolution in quality 1D FID. The equivalent of high resolution in the evolution evolution dimensions, and the usefulness of the simple leastdimension can be achieved without obtaining an extensive multidisquares alternative has not been appreciated. This paper remensional FID. The analysis of the 1D FID can also be used to examines, generalizes, and analyzes the linear least-squares predict the signal to noise ratio of the extracted slices that will procedure, and presents examples from solid state NMR that result from various evolution dimension sampling protocols, making it possible to develop a priori an optimal sampling strategy for illustrate its power. It is shown that closely spaced constantthe multidimensional FID. The evolution dimension need not be evolution-frequency slices can be extracted from a truncated sampled periodically. The procedure has a potential signal-tomultidimensional FID, here called the ''main'' FID, with noise ratio advantage because it extracts usable information from the aid of data from a separate 1D FID, called the ''guide'' a multidimensional FID at short evolution times before the magne-FID. The procedure may be thought of as exporting resolutization has decayed significantly. ᭧ 1997 Academic Press tion from the guide FID, and importing it into the associated evolution dimension of the main FID. Thus our acronym, ''TIGER,'' is derived from technique for importing greater