A Selective Determination of the Proton Nuclear Relaxation Times of the Alkaloid Vindoline: An Extension via Fourier Transform Measurements

Canadian Journal of Chemistry ◽

10.1139/v74-130 ◽

1974 ◽

Vol 52 (5) ◽

pp. 829-832 ◽

Author(s):

L. D. Hall ◽

Caroline M. Preston

Keyword(s):

Fourier Transform ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Nuclear Relaxation ◽

Transform Method ◽

Fourier Transform Method ◽

Selective Determination ◽

A Fourier Transform method has been used to measure the spin–lattice relaxation times of essentially all the protons of the alkaloid, vindoline. It is shown that even for a molecule of this size substantial and potentially useful differences exist in the experimental relaxation times which reflect the degree of crowding of each proton by other protons.

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A single-scan fourier transform method for measuring spin-lattice relaxation times

Journal of Magnetic Resonance (1969) ◽

10.1016/0022-2364(76)90039-1 ◽

1976 ◽

Vol 24 (2) ◽

pp. 295-300 ◽

Author(s):

R Kaptein ◽

K Dijkstra ◽

C.E Tarr

Keyword(s):

Fourier Transform ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Transform Method ◽

Fourier Transform Method ◽

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A Selective Determination of the Proton Nuclear Relaxation Times of the Alkaloid Vindoline

Canadian Journal of Chemistry ◽

10.1139/v72-076 ◽

1972 ◽

Vol 50 (4) ◽

pp. 497-503 ◽

Author(s):

R. Burton ◽

C. W. M. Grant ◽

L. D. Hall

Keyword(s):

Relaxation Time ◽

Spin Relaxation ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Nuclear Relaxation ◽

Methyl Group ◽

Selective Determination ◽

An audiofrequency-pulse n.m.r. spectrometer has been used to measure the nuclear relaxation times of individual protons of the alkaloid, vindoline. For this substance in deuterochloroform solution the spin–lattice relaxation times (T1) vary between 1.15 and 1.50 s and the spin–spin relaxation times (T2) are between 0.90 and 1.40 s. The N-methyl group has the shortest relaxation time of those resonances which were measured. A discussion of the apparatus and methodology is given.

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Optimal determination of relaxation times of fourier transform nuclear magnetic resonance. Determination of spin-lattice relaxation times in chemically polarized species

The Journal of Physical Chemistry ◽

10.1021/j100612a022 ◽

1974 ◽

Vol 78 (19) ◽

pp. 1971-1977 ◽

Author(s):

Kenner A. Christensen ◽

David M. Grant ◽

Edward M. Schulman ◽

Cheves Walling

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Spin Lattice ◽

Nuclear Magnetic

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ChemInform Abstract: DETERMINATION OF THE CONFORMATION OF SUBSTITUTED 4,6-DIOXO-1,3-DIOXANES. PART III. CARBON-13 NMR CHEMICAL SHIFTS, 13C,H COUPLING CONSTANTS AND SPIN-LATTICE RELAXATION TIMES OF 2-, 2,2-, 2,5-, AND 2,2,5-SUBSTITUTED DERIVATIVES

Chemischer Informationsdienst ◽

10.1002/chin.197714044 ◽

1977 ◽

Vol 8 (14) ◽

pp. no-no

Author(s):

P. AEYRAES

Keyword(s):

Chemical Shifts ◽

Relaxation Times ◽

Lattice Relaxation ◽

Coupling Constants ◽

Spin Lattice Relaxation ◽

Nmr Chemical Shifts ◽

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Solid-State29Si NMR Analysis of Cements: Comparing Different Methods of Relaxation Analysis for Determining Spin−Lattice Relaxation Times to Enable Determination of the C3S/C2S Ratio

Industrial & Engineering Chemistry Research ◽

10.1021/ie070220m ◽

2007 ◽

Vol 46 (15) ◽

pp. 5122-5130 ◽

Author(s):

Christopher L. Edwards ◽

Lawrence B. Alemany ◽

Andrew R. Barron

Keyword(s):

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Nmr Analysis ◽

Relaxation Analysis ◽

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Elimination of Hl inhomogeneity and spin-spin relaxation in the determination of spin-lattice relaxation times

Journal of Magnetic Resonance (1969) ◽

10.1016/0022-2364(70)90068-5 ◽

1970 ◽

Vol 2 (2) ◽

pp. 174-180 ◽

Author(s):

K Van Putts

Keyword(s):

Spin Relaxation ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

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Natural-Abundance Carbon-13 Fourier-Transform Nuclear Magnetic Resonance Spectra and Spin Lattice Relaxation Times of Unfractionated Yeast Transfer-RNA

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.69.7.1804 ◽

1972 ◽

Vol 69 (7) ◽

pp. 1804-1808 ◽

Author(s):

R. A. Komoroski ◽

A. Allerhand

Keyword(s):

Nuclear Magnetic Resonance ◽

Fourier Transform ◽

Magnetic Resonance ◽

Relaxation Times ◽

Lattice Relaxation ◽

Transfer Rna ◽

Natural Abundance ◽

Spin Lattice Relaxation ◽

Spin Lattice ◽

Nuclear Magnetic Resonance Spectra

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The determination of zero-field splittings from measurements of spin-lattice relaxation times

Journal de Physique Lettres ◽

10.1051/jphyslet:0197400350507300 ◽

1974 ◽

Vol 35 (5) ◽

pp. 73-76 ◽

Author(s):

A.M. Vasson ◽

A. Vasson ◽

A. Gavaix ◽

T.S. Yalcin ◽

P. Steggles ◽

...

Keyword(s):

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

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A new look at the method of variable nutation angle for the measurement of spin-lattice relaxation times using fourier transform NMR

Journal of Magnetic Resonance (1969) ◽

10.1016/0022-2364(77)90138-x ◽

1977 ◽

Vol 25 (1) ◽

pp. 231-235 ◽

Author(s):

Raj K Gupta

Keyword(s):

Fourier Transform ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

Spin Lattice ◽

Nutation Angle ◽

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ChemInform Abstract: DETERMINATION OF ANISOTROPY OF MOLECULAR MOTION WITH (13)C SPIN-LATTICE RELAXATION TIMES

Chemischer Informationsdienst ◽

10.1002/chin.197524102 ◽

1975 ◽

Vol 6 (24) ◽

Author(s):

STEFAN BERGER ◽

FRITZ R. KREISSL ◽

DAVID M. GRANT ◽

JOHN D. ROBERTS

Keyword(s):

Molecular Motion ◽

Relaxation Times ◽

Lattice Relaxation ◽

Spin Lattice Relaxation ◽

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