NMR of Phosphorus Compounds

IsN NMR Spectroscopy of Phosphorus-Nitrogen Compounds

A systematic study of sensitil'ilY enhancement in ' ~N NMR spectra of phosphorus-nilrogf'o compounds by 3IP.I5N polariSlllion tfllrtsff'r \'l as .,..rformed !ISing Iris-(dimethylamioo)phosphine ( I) as a model compound. The application of sen!ral mul1ipulse lechoiques (refocussed and oon-rdocussed INEPT. DEPT) lind dccoupling sclw>mes shows lh:tl muimum enhaocement \'I'as reached \'lith fhe non...

Phosphorus NMR of plasmid DNA.

Due to the key position of phosphorus-containing compounds in biology, favour­ able NMR properties of 3 I P nucleus and its 100 % natural abundance, 3 1 P NMR has become a valuable biochemical method. It gives, for example, information about DNA conformation since 3 I P NMR chemical shift is sensitive to the phosphodiester linkage geometry (Gorenstein 1984). 3 1 P NMR reflects base sequence — d...

Determination Functional Theory Investigation of Polyphenolic Compounds Reactions: NMR study

Over the past decade, the chemical behavior of flavonoids as antioxidants has become the subject ofintense experimental research. In this paper, we use a quantum-chemical approach to shed light on thereactivity of four poly phenols, Benzoic acid, vanilic acid, gallic acid and flavone . In order to establishthe most efficient theoretical methodology, different methods, either Hartree—Fock-based ...

Catalytic decomposition of phosphorus compounds to produce phosphorus atoms

Phosphorus NMR analysis of phospholipids in detergents.

Various detergents can be used to dissolve phospholipids, resulting in very narrow 31PNMR resonances. The resonances are well resolved, allowing identification and quantitative analysis of phospholipids in a mixture. The chemical shift depends strongly on pH, reflecting changes in the state of ionization of the phospholipid headgroup moieties. Samples of phospholipids dissolved in aqueous deter...