Two-dimensional exchange spectroscopy revisited: Accounting for the number of participating spins | Zendy

Nenad Juranić | Zendy; Z. Zolnai | Zendy; Slobodan Macura | Zendy

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Two-dimensional exchange spectroscopy revisited: Accounting for the number of participating spins

Author(s) -

Nenad Juranić,

Z. Zolnai,

Slobodan Macura

Publication year - 2000

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0006285j

Subject(s) - spins , magnetization , relaxation (psychology) , population , intermolecular force , magnetization transfer , spectroscopy , chemistry , condensed matter physics , nuclear magnetic resonance , physics , molecule , quantum mechanics , magnetic field , medicine , psychology , social psychology , demography , organic chemistry , sociology , magnetic resonance imaging , radiology

The magnetization exchange between two groups of equivalent spins each havingdifferent populations and overall relaxation rates has been analyzed. The results suggest that either the spin population difference or the overall relaxation rate difference in an exchange spectrum can produce cross-peaks with volumes larger than that of the corresponding diagonal line. This is important for interpretation of the magnetization exchange between water and macromolecular protons where both the population differences and auto-relaxation rate differences can be very large. Theoretical predictions of peak volume evolutionwere experimentally verified in the intermolecular magnetization exchange between the water and labile amide proton in a model system N-acetylglycine/water.

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