Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Recent advances in editing and selective detection methods for H-1 NMR spectroscopy
Autore:
Liu, ML; Lindon, JC;
Indirizzi:
Chinese Acad Sci, Wuhan Inst Phys & Math, Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China Chinese Acad Sci Wuhan Peoples R China 430071 an 430071, Peoples R China Univ London Imperial Coll Sci Technol & Med, Div Biomed Sci, London SW7 2AZ, England Univ London Imperial Coll Sci Technol & Med London England SW72AZ gland
Titolo Testata:
CURRENT ORGANIC CHEMISTRY
fascicolo: 3, volume: 5, anno: 2001,
pagine: 351 - 371
SICI:
1385-2728(200103)5:3<351:RAIEAS>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
HETERONUCLEAR SHIFT CORRELATION; MULTIPLE-QUANTUM COHERENCE; J-CROSS-TALK; POLARIZATION-TRANSFER; NATURAL ABUNDANCE; C-13 NMR; SIGNAL ENHANCEMENT; H-1-NMR RESONANCES; FIELD GRADIENTS; PULSE SEQUENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
60
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, ML Chinese Acad Sci, Wuhan Inst Phys & Math, Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China Chinese Acad Sci Wuhan Peoples R China 430071 1, Peoples R China
Citazione:
M.L. Liu e J.C. Lindon, "Recent advances in editing and selective detection methods for H-1 NMR spectroscopy", CURR ORG CH, 5(3), 2001, pp. 351-371

Abstract

In complex organic molecules, macromolecules and biological samples,H-1 NMR spectra can be very complex and assignments of resonances can be difficult. Thus NMR pulse sequence methods to edit and simplify spectra have been introduced. During the last few years, there have been a number of reports on the use of heteronuclear multiple-quantum filtration to simplify H-1 NMR spectra. The method is known as inverse-detected or H-1-detected NMR spectroscopy. These pulse sequences start and end with H-1 single-quantum coherence, and heteronuclear single- or multiple-quantum coherence is generated and allowed to evolve in the middle stage of the pulse sequence. In addition,we have developed a family of NMR pulse sequences, known generically as MAXY, for the provision of separate one-, two- and three-dimensional H-1 NMR spectra of CH, CH2 and CH3 groups. These methods utilize the natural abundance of C-13 spins and are based upon the selection of the different possible maximum multiple-quantum coherences of the various groups. These approaches have been applied to the measurement of chemical shifts, coupling constants, relaxation rates and molecular diffusion coefficients. These recent results are summarized in this article. Possibilities for the future are alsooutlined.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 10:50:23