𝔖 Bobbio Scriptorium
✦   LIBER   ✦

SIAM, a Novel NMR Experiment for the Determination of Homonuclear Coupling Constants

✍ Scribed by Thomas Prasch; Peter Gröschke; Steffen J. Glaser

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
135 KB
Volume
37
Category
Article
ISSN
0044-8249

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Determination of the ϕ angle in a peptid
Determination of the ϕ angle in a peptide backbone by NMR spectroscopy with a combination of homonuclear and heteronuclear coupling constants
✍ Peter Schmieder; Horst Kessler 📂 Article 📅 1992 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 393 KB

## Abstract The ϕ angle in a cyclic peptide is determined by the combined use of homonuclear and heteronuclear coupling constants. Two of the four coupling constants that define the ϕ angle in a peptide are determined exactly, two qualitatively. Via Karplus‐type equations, they are transformed into

One- and two-dimensional gradient-select
One- and two-dimensional gradient-selected HSQMBC NMR experiments for the efficient analysis of long-range heteronuclear coupling constants
✍ R. Thomas Williamson; Brian L. Márquez; William H. Gerwick; Katalin E. Kövér 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 240 KB 👁 1 views

Three new gradient-selected NMR experiments for the analysis of long-range heteronuclear coupling constants are presented. They are demonstrated on a series of compounds including sucrose, strychnine and a complex macrolide, phormidolide, isolated from a marine cyanobacterium. These 1D and 2D hetero

Application of frequency domain deconvol
Application of frequency domain deconvolution to DQF-COSY spectra for the determination of coupling constants as a tool for signal assignment based on coupling networks
✍ Damien Jeannerat 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 237 KB 👁 1 views

Scalar coupling constants can be extracted from the cross peaks of correlation spectra by applying deconvolution to the frequency domain. This requires high resolution in the directly detected dimension. A three-step automated procedure is presented as a free package running in combination with a ma

A novel μ-ESI source for coupling capill
A novel μ-ESI source for coupling capillary electrophoresis and mass spectrometry: Sequence determination of tumor peptides at the attomole level
✍ Robert E. Settlage; Paul S. Russo; Jeffrey Shabanowitz; Donald F. Hunt 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 109 KB 👁 1 views

Membrane preconcentration transient isotachophoresis capillary elec-Ž . Ž . trophoresis mPC-tITP-CE was coupled to an ion trap mass spectrometer MS Ž . through a porous glass joint ion electrospray ionization source -ESI source . This novel CErMS interface gave enhanced signal with less chemical bac

1H NMR Study of the Conformation of Meta
1H NMR Study of the Conformation of Metallapentacycles N—C—C—O—M [M = Rh(III) and Ir(III)] Resulting in a Karplus-Type Relationship for Vicinal H–C(sp3)–N(sp13)–H Coupling Constants
✍ M. Luisa Jimeno; José Elguero; Daniel Carmona; M. Pilar Lamata; Emilio San José 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 318 KB 👁 2 views

The complete analysis of the 'H NMR spectra of [ (C,Me,)lr(glycinate)CI] and [ (C,Me,)Ir(N-methyl-g1ycinate)Clj provide information for the conformational analysis of the five-membered N-C-C-0-Ir ring. A Karplus relationship has been established for these metallacycles [ 3J(H,H) = 8.9 cos' 4 -1.0 c