Regularized resolvent transform for direct calculation of 45° projections of 2D J spectra

被引：13

作者：

Armstrong, GS ^{[1
]}

Chen, JH ^{[1
]}

Cano, KE ^{[1
]}

Shaka, A ^{[1
]}

Mandelshtam, VA ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2003年 / 164卷 / 01期

基金：

美国国家科学基金会;

关键词：

spectral estimation; resolution enhancement; regularized resolvent transform; filter diagonalization method; 2D J spectrum;

D O I：

10.1016/S1090-7807(03)00129-0

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The regularized resolvent transform (RRT) has been applied in a novel way to J-resolved spectra. This involves the direct calculation of the 45degrees projection without constructing the 2D spectrum. The results show a significant resolution enhancement over that obtained by the 45degrees projection of a 2D Fourier spectrum, even for much larger signals. In particular, RRT is able to resolve peaks that belong to different overlapping multiplets in a very crowded spectral region, where the conventional technique fails for any signal size. The resolving power of this method along with the significantly shorter signals required, make this method a powerful tool in spectral assignment. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：136 / 144

页数：9

共 18 条

[1] HOMONUCLEAR BROAD-BAND DECOUPLING AND 2-DIMENSIONAL J-RESOLVED NMR-SPECTROSCOPY [J].