Quantum Treatment of Intermolecular Multiple-Quantum Coherences with Intramolecular J Coupling in Solution NMR

다국어 초록 (Multilingual Abstract)

A recently introduced density matrix picture for dipolar effects in solution NMR (1996, J. Chem. Phys. 105, 874) gave complete solutions for intermolecular multiple-quantum coherences for single-component samples without scalar couplings. This paper, for the first time, shows that this quantum picture can lead to explicit signal expressions for multicomponent samples of molecules with internal scalar couplings (here assumed to generate a first-order spectrum) and long-range dipolar couplings. Experimental observation of a triplet in the indirectly detected dimension for a heteronuclear CRAZED sequence (^13CHCI_3 sample, ZQ or 2Q coherences) gives clear evidence that the coupling is due to the intermolecular dipolar coupling. We also make comparisons with classical pictures which introduce the dipolar demagnetization field in multicomponent spin systems.

목차 (Table of Contents)

• Quantum Treatment of Intermolecular Multiple-Quantum Coherences With Intramolecular J Coupling in Solution NMR
• 요약
• Ⅰ.Introduction
• Ⅱ.THEORY
• Ⅲ.DISCUSSION AND CONCLUSIONS
• APPENDIX
• REFERENCES
• A numerical study on dynamics of dipolar demagnetizing field in solution NMR
• I. INTRODUCTION
• Ⅱ.THEORY
• Ⅲ.DISCUSSION AND CONCLUSIONS
• Figure Captions