Application of multiplet structure deconvolution to extract scalar coupling constants from 1D nuclear magnetic resonance spectra
نویسندگان
چکیده
Abstract. Multiplet structure deconvolution provides a robust method to determine the values of coupling constants in first-order 1D nuclear magnetic resonance (NMR) spectra. Functions simplifying for partners with spin larger than 1/2 and doublets unequal amplitudes were introduced. The chemical shifts causing mild second-order effects can, favourable cases, be calculated from slopes measured doublet structures. Illustrations demonstrate that can straightforwardly analyse multiplet posing difficulties humans and, some extract unresolved multiplets.
منابع مشابه
Refinement of Protein Tertiary Structure by Using Spin-Spin Coupling Constants from Nuclear Magnetic Resonance Measurements
متن کامل
NUCLEAR MAGNETIC RESONANCE STUDY OF THE STRUCTURE OF GLYOXALDIHYDRAZONE
Study of the nuclear magnetic resonance spectra of glyoxaldihydrazone in dimethylsulfoxide and deuterochlorofonn leads to the conclusion that this compound exists predominantly in non-chelate structure
متن کاملNuclear magnetic resonance spin–spin coupling constants from density functional theory: Problems and results
Our recently developed method for the calculation of indirect nuclear spin–spin coupling constants is studied in more detail. For the couplings between nuclei other than N, O, and F ~which have lone pairs! the method yields very reliable results. The results for J~Si–H! couplings are presented and their dependence on the basis set quality is analyzed. Also, J~H–H! and J~X–H! couplings ~X5C, Si,...
متن کاملNuclear magnetic resonance spin–spin coupling constants from coupled perturbed density functional theory
For the first time, a complete implementation of coupled perturbed density functional theory ~CPDFT! for the calculation of NMR spin–spin coupling constants ~SSCCs! with pure and hybrid DFT is presented. By applying this method to several hydrides, hydrocarbons, and molecules with multiple bonds, the performance of DFT for the calculation of SSCCs is analyzed in dependence of the XC functional ...
متن کاملRate constants determined by nuclear magnetic resonance.
Fast kinetic methods are used to measure reactions that take place in less time than required to mix the reagents manually and to measure the reaction by usual methods, like UV-visible spectrophotometry and fluorescence. The best known of them are rapid-mixing and relaxation methods, which are used for reactions with half-times in the millisecond and microsecond ranges, respectively. The picose...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic resonance
سال: 2021
ISSN: ['2699-0016']
DOI: https://doi.org/10.5194/mr-2-545-2021