Two-dimensional NMR spectroscopy in Earth's magnetic field

被引：46

作者：

Robinson, Jeremy N.

Coy, Andrew

Dykstra, Robin

Eccles, Craig D.

Hunter, Mark W.

Callaghan, Paul T. ^{[1
]}

机构：

[1] Victoria Univ Wellington, MacDiarmid Inst, Wellington, New Zealand

[2] Magritek, Wellington, New Zealand

[3] Massey Univ, Inst Fundamental Sci, Palmerston North, New Zealand

来源：

JOURNAL OF MAGNETIC RESONANCE | 2006年 / 182卷 / 02期

关键词：

Earth field; COSY; heteronuclear; difluorobenzene;

D O I：

10.1016/j.jmr.2006.06.027

中图分类号：

Q5 [生物化学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

We demonstrate the first two-dimensional correlation NMR (COSY) spectra obtained at ultra low frequencies (ULF) using the Earth's magnetic field. Using a specially developed spectrometer with multiple audio-frequency pulses under controlled pulse phase, we observe magnetisation transfer arising from heteronuclear J-couplings in trifluoroethanol and para-difluoroberizene. The 2D COSY spectra exhibit all diagonal and off-diagonal inultiplets consistent with known J-couplings in these molecules. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：343 / 347

页数：5

共 11 条

[1]

Chemical analysis by ultrahigh-resolution nuclear magnetic resonance in the Earths magnetic field [J].