Chapter 3 nitrogen nuclear magnetic resonance

Relaxation Effects in Nuclear Magnetic Resonance Absorption

1948 • 6,241 citations

Atomic Shielding Constants

1930 • 2,758 citations

Application of Fourier Transform Spectroscopy to Magnetic Resonance

1966 • 1,607 citations

Electron Coupled Interactions between Nuclear Spins in Molecules

1953 • 932 citations

CHEMICAL SHIFTS IN THE NUCLEAR MAGNETIC RESONANCE SPECTRA OF MOLECULES CONTAINING POLAR GROUPS

1960 • 725 citations

Molecular orbital theory of nuclear spin coupling constants

1964 • 554 citations

Theory of Carbon NMR Chemical Shifts in Conjugated Molecules

1963 • 536 citations

A Note on the Fluorine Resonance Shifts

1954 • 403 citations

Microwave Spectrum and Molecular Structure of Formamide

1960 • 329 citations

Calculation of Chemical Shifts. I. General Formulation and the Z Dependence

1964 • 316 citations

The Electron Diffraction Investigation of the Structure of Benzene, Pyridine, Pyrazine, Butadiene-1,3, Cyclopentadiene, Furan, Pyrrole, and Thiophene

1939 • 309 citations

The Dependence of a Nuclear Magnetic Resonance Frequency upon Chemical Compound

1950 • 280 citations

Interactions between Nuclear Spins in Molecules

1952 • 268 citations

On the Nuclear Magnetic Moments of Several Stable Isotopes

1951 • 268 citations

The effect of quadrupole relaxation on nuclear magnetic resonance multiplets

1958 • 242 citations

DYNAMIC MECHANICAL PROPERTIES OF POLYVINYL ACETATE IN SHEAR IN THE GLASS TRANSITION TEMPERATURE RANGE

1963 • 223 citations

C13 Splittings in Proton Magnetic Resonance Spectra. II. Bonding in Substituted Methanes

1959 • 222 citations

Nitrogen-15 Magnetic Resonance Spectroscopy. II. Coupling Constants

1964 • 205 citations

Spectroscopic Studies of Keto-Enol Equilibria. IX. N¹⁵-Substituted Anilides^1,2

1966 • 201 citations

Dependence of C13-Proton Spin Coupling Constants on s Character of the Bond

1959 • 178 citations

Valence-Bond Studies of the Dependence upon Substituents of C13–H and Si29–H Coupling

1962 • 174 citations

Approximate self-consistent molecular orbital theory of nuclear spin coupling. I. Directly bonded carbon-hydrogen coupling constants

1970 • 170 citations

Carbon—Carbon Spin-Coupling Constants in Characteristic CC-Bond Types

1963 • 165 citations

TIN-PROTON SPIN-SPIN COUPLING IN METHYLTIN HALIDES AND RELATED COMPOUNDS

1961 • 164 citations

Rates and Mechanisms of Protolysis of Methylammonium Ion in Aqueous Solution Studied by Proton Magnetic Resonance

1957 • 162 citations

PROTON MAGNETIC RESONANCE MEASUREMENTS OF FORMAMIDE

1960 • 161 citations

Dependence of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>19</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Nuclear Resonance Position on Chemical Compound

1950 • 160 citations

Theoretical Interpretation of 31P NMR Chemical Shifts. I

1966 • 155 citations

Nuclear magnetic resonance spectroscopy. Benzene-13C

1967 • 148 citations

Interpretation of the proton and nitrogen chemical shifts of pyridine and pyridinium cation

1964 • 143 citations

Chemical Applications of Nuclear Magnetic Double Resonance.

1963 • 134 citations

The Dependence of Directly Bonded Coupling Constants upon the Effective Nuclear Charge

1965 • 133 citations

Nuclear Relaxation of N¹⁴ by Quadrupole Interactions in Molecular Liquids

1963 • 132 citations

Spectroscopic Studies of Keto-Enol Equilibria. VII. Nitrogen-15 Substituted Schiff Bases

1964 • 120 citations

The Measurement of Self-Diffusion in Solid Polymers

1952 • 119 citations

Stable Carbonium Ions. LXV: Protonation of Hydrogen Cyanide and Alkylnitriles in <font>FSO</font>₈<font>H</font>–<font>SbF</font>₅–<font>SO</font>₂ Solution. Comparative Study of Meerwein's <font>N</font>-Alkylnitrilium Ions

2003 • 118 citations

¹⁴N chemical shifts in organic compounds

1964 • 113 citations

A CRITERION FOR ORBITAL HYBRIDIZATION AND CHARGE DISTRIBUTION IN CHEMICAL BONDS

1959 • 108 citations

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>14</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>15</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Hyperfine Anomaly

1959 • 105 citations

AN ADDITIVITY RELATION FOR C¹³-PROTON COUPLING IN NUCLEAR MAGNETIC RESONANCE

1961 • 102 citations

Theoretical calculation of N.M.R. spectral line shapes

1964 • 101 citations

Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. II. Kinetics of Electron Transfer between Ferri- and Ferrocyanide Ions

1965 • 99 citations

Nuclear Magnetic Antishielding of Nuclei in Molecules. Magnetic Moments of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>19</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">N</mml:mi></mml:mrow><mml:mrow><mml:mn>14</mml:mn></mml:mrow></…

1964 • 99 citations

Proton Magnetic Resonance in Stannane, the Methylstannanes and Related Compounds

1963 • 99 citations

NUCLEAR MAGNETIC RESONANCE SPECTRA OF SOME SUBSTITUTED METHANES

1963 • 93 citations

C13 Splittings in Proton Magnetic Resonance Spectra. III. Formyl Compounds

1962 • 88 citations

TEMPERATURE EFFECTS ON NUCLEAR MAGNETIC RESONANCE ABSORPTION OF HYDROGENS ATTACHED TO NITROGEN

1956 • 82 citations

THE PROTON MAGNETIC RESONANCE SPECTRUM AND THE CHARGE DISTRIBUTION OF THE PYRIDINIUM ION

1961 • 78 citations

The Diamagnetic Correction for Protons in Water and Mineral Oil

1950 • 77 citations

Nitrogen-14 nuclear magnetic resonance. VI. Trigonally hybridized nitrogen atoms

1968 • 75 citations

Carbon-13 Proton Spin Coupling Constants in Heteroaromatic Molecules

1964 • 74 citations

Nuclear Magnetic Resonance Studies of Methyl Derivatives of Cytosine

1965 • 72 citations

Stable carbonium ions. LXIX. Protonation of ureas, guanidines, and biotin in super acid solution

1968 • 72 citations

Nitrogen-15 Nuclear Magnetic Resonance Evidence That Mg²⁺ Does Not Complex with Nitrogen Atoms of Adenosine Triphosphate

1966 • 70 citations

Determination of the azo-hydrazono tautomerism of some 2-pyrazolin-5-one dyes by means of nuclear magnetic resonance spectroscopy and 15N-labeled compounds

1969 • 67 citations

Proton-proton double resonance studies of formamide-¹⁵N and N-methylformamide-¹⁵N

1964 • 67 citations

Analysis of the proton nuclear magnetic resonance spectrum of formamide by the double resonance technique

1958 • 66 citations

DOUBLE RESONANCE STUDY OF PYRROLE AND OF THE PYRROLE—PYRIDINE INTERACTION

1961 • 66 citations

Deuteronen‐Kernresonanzspektroskopie

1964 • 64 citations

Nuclear magnetic resonance and infrared studies of N^15-substituted trimethylsilyl-, -germyl-, and -stannylanilines. A Test of (p-&gt;d)-.pi. interactions in Group IV nitrogen bonds

1968 • 63 citations

Cis-trans isomerism in formanilide

1964 • 60 citations

Indirect Detection of Weak or Hidden Nuclear Magnetic Resonance Signals

1963 • 59 citations

Long-Range N14–H1 Nuclear-Resonance Coupling in Isonitriles

1961 • 57 citations

Double Resonance Spectra of N14 and N15 Ammonium Ion

1962 • 57 citations

NMR of Isotopically Substituted Molecules. A Complete Analysis of the Spectrum of Acrylonitrile

1964 • 57 citations

Nuclear relaxation and molecular properties Part I.¹⁴N nuclear quadrupolar relaxation and¹H line shapes in nitrogen-containing heterocycles

1968 • 55 citations

NATURAL-ABUNDANCE C ¹³ NUCLEAR MAGNETIC RESONANCE SPECTRA OF MEDIUM-MOLECULAR-WEIGHT ORGANIC COMPOUNDS

1968 • 54 citations

Substituent Effects. II. C¹³-Proton Couplings in Carbon sp² Systems

1962 • 53 citations

The synthesis of the perfluoroammonium cation, NF4+

1967 • 52 citations

Preparation and Proton Magnetic Resonance Studies of Anhydrous Ammonia

1957 • 51 citations

High Stability Nuclear Magnetic Resonance Spectrograph

1957 • 51 citations

Quadrupole Relaxation and Structures in Nitrogen Magnetic Resonances of Ammonia and Ammonium Salts

1957 • 51 citations

The Preparation of Fluorodiazonium Hexafluoroarsenate (N₂F⁺AsF^-) from cis-Difluorodiazine¹

1965 • 51 citations

Nitrogen-15 Magnetic Resonance Spectroscopy. VI. Pyrimidine Derivatives^1,2

1965 • 49 citations

Estimation of azo - hydrazo tautomeric equilibrium in ortho-hydroxy-azocompounds by N.M.R.

1968 • 49 citations

NMR spectral studies—IV

1967 • 46 citations

Nuclear Magnetic Resonance Studies of Nitriles and Isocyanides: Acetonitrile and Methyl Isocyanide

1965 • 44 citations

Analysis of the NMR and Double-Resonance Spectra of the Isomers of N2F2

1962 • 43 citations

NITROGEN-15 MAGNETIC RESONANCE SPECTROSCOPY, I. CHEMICAL SHIFTS

1964 • 43 citations

N.M.R. studies of isotopically substituted molecules: The sign of the C≡N coupling constant

1966 • 43 citations

¹⁴N nuclear magnetic resonance: amines and ammonium ions

1969 • 43 citations

Quadrupole relaxation in nitrogen nuclear resonances

1964 • 42 citations

Chemical Shifts of Nitrogen

1955 • 42 citations

The analysis of the double resonance spectrum of N-methylformamide

1962 • 42 citations

Heteronuclear double resonance on formamide-¹⁵N and ammonium-¹⁵N using weak perturbing radiofrequency fields

1969 • 42 citations

Complex fluoro cations. III. Tetrafluoronitrogen(V) cation, NF4+. Vibrational and fluorine-19 nuclear magnetic resonance spectra of NF4+AsF6-

1967 • 39 citations

Nitrogen-15 Magnetic Resonance Spectroscopy. IV. The Degenerate Bimolecular Exchange of Protons in Ketimines^1,2

1965 • 39 citations

Nitrogen nuclear magnetic resonance. Part I. The nitroso (nitrosyl) group

1970 • 37 citations

15N NMR Chemical Shifts in 15ND3, 15ND2H, 15NDH2, and 15NH3

1969 • 37 citations

Electron Spin Resonance and Optical Absorption of K3[Cr(CN)5 NO]· H2O

1961 • 36 citations

Boron-11 chemical shifts in the determination of donor-acceptor strengths—VII

1968 • 36 citations

¹⁴N chemical shifts in primary and secondary amides

1966 • 35 citations

C¹³ SPLITTINGS IN SOME SUBSTITUTED BENZENES

1962 • 35 citations

Chemical Shifts of 14N in the NMR Spectra of Linear Triatomic Molecules and Ions

1966 • 35 citations

TEMPERATURE DEPENDENCE OF THE KNIGHT SHIFT OF THE SODIUM-AMMONIA SYSTEM

1962 • 35 citations

N.M.R. STUDIES OF HYDROGEN BONDING. I. BINARY MIXTURES OF CHLOROFORM AND NITROGEN BASES¹

1963 • 34 citations

Heteronuclear magnetic double resonance: spin–spin couplings involving nitrogen-14

1967 • 34 citations

Nuclear spin-spin interactions

1969 • 34 citations

Isotope Shifts and Spin Coupling in the Proton Magnetic Resonance of Deuterated Ammonium Ions

1966 • 34 citations

Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. I. Chemical Shifts and Line Widths of N¹⁴ and C¹³ Resonances

1965 • 33 citations

An Experimental Investigation of the Nuclear Magnetic Moments of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">D</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">H</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow></mml:msup></…

1950 • 33 citations

Nitrogen-14 Nuclear Magnetic Resonance in Nitro Compounds

1964 • 33 citations

Nitrogen-15 nuclear magnetic resonance shifts in liquid ammonia-15N-solvent mixtures

1969 • 32 citations

Valence bond studies of internuclear coupling

1962 • 32 citations

Nitrogen-14 nuclear magnetic resonance—V1–4

1967 • 32 citations

(p → d)-π Interactions in the Silicon-Nitrogen Bond. An Experimental Test

1966 • 31 citations

Chemical Shift of the N¹⁴ Magnetic Resonance

1953 • 31 citations

Long-Range N14 Coupling in Ethyl Ammonium Ions

1963 • 30 citations

Unusual Spin-Spin Couplings in NMR Spectra of Alkyl Ammonium Salts

1963 • 30 citations

Substituent Effects on the Long-Range Nitrogen-14 Coupling in Alkylammonium Salts¹

1965 • 29 citations

Nitrogen-15 Magnetic Resonance Spectroscopy. V. Oxygen-Nitrogen Compounds¹

1965 • 29 citations

Chemical shifts of N14 in the NMR spectra of ammonia and related compounds

1958 • 29 citations

A Tracer Demonstration of a Reversible Step in Diazonium Salt Decomposition

1963 • 28 citations

The Nitrogen-15 Nuclear Magnetic Resonance Spectrum of the S₄N₄+ Ion

1965 • 28 citations

Isotope Effects on 59Co Magnetic Shielding in K3Co(CN)6

1965 • 28 citations

Calculation of Electron-Coupled Nuclear Spin-Spin Interactions in Molecules by a Variational Procedure

1962 • 27 citations

Nuclear magnetic resonance studies of tetraalkyl compounds of group III and group V elements—II

1965 • 27 citations

Evidence for a Completely Planar Structure of Pyrrole from Its Microwave Spectrum

1952 • 27 citations

Nitrogen-15 magnetic resonance spectroscopy. Correlation of the 15N-H coupling constants in aniline derivatives with Hammett .sigma. constants

1969 • 27 citations

Determination of relative signs of N15H coupling constants in N,N-dimethylformamideN15 by proton double resonance

1964 • 26 citations

631. The¹⁴N chemical shifts in metal–thiocyanate complexes

1964 • 26 citations

¹⁴N chemical shifts in thioamides

1967 • 26 citations

Indirect nitrogen-15-hydrogen-1 spin-spin couplings in quinoline-15N, its ethiodide, and its N-oxide. Relative signs and solvent dependence

1967 • 26 citations

Nuclear relaxation and molecular properties

1969 • 26 citations

Calculation of Nitrogen Chemical Shifts

1968 • 25 citations

Non-Additive Substituent Effects on C¹³-Proton Spin-Spin Couplings

1962 • 25 citations

134. The mesomeric effect of the dimethylamino-group in dimethylaniline, and the nature of its interaction with halogen groups

1936 • 24 citations

Nuclear Magnetic Resonance Spectroscopy. III. Structure of Phenyldiazonium Ion from ¹⁵N-H Coupling Study¹

1966 • 24 citations

Nitrogen-15 magnetic resonance spectroscopy. Coupling constants in hydrogen cyanide

1968 • 24 citations

Angular dependence of vicinal hydrogen-1-nitrogen-14 spin coupling

1968 • 22 citations

159. Proton–proton spin decoupling by single sideband modulation

1962 • 22 citations

Stable carbonium ions. LXXI. Protonated imides

1968 • 22 citations

Double Resonance Proton Spectra of Amides

1965 • 21 citations

Hydrogen bond studied by 14N nuclear magnetic resonance I.

1965 • 21 citations

Kinetics of Rapid Reactions in Liquid Ammonia. The Ammonia—Amide Proton Exchange

1966 • 20 citations

Proton Magnetic Resonance Spectra of cis- and trans-¹⁵N-n-Butylformamide¹

1965 • 20 citations

N.M.R. studies of aliphatic nitrogen-containing compounds. X. 14N,1H, and 1H, 1H spin couplings in quaternary enammonium salts

1969 • 20 citations

Interactions spin-spin nucléaires [1]

1964 • 20 citations

Nuclear Magnetic N14 Resonance Spectra, Molecular Structures, and Exchange Reactions in the System N2O5–NO2+–NO3—–H2O

1956 • 20 citations

Über die Struktur der Thioamide und ihrer Derivate, III¹⁾ H‐NMR‐spektroskopischer Nachweis der behinderten Rotation bei primären Thioamiden an ¹⁵N‐Thioacetamid

1968 • 19 citations

Protonenresonanz‐Untersuchungen an aromatischen Heterocyclen, II: Isothiazole und Isothiazolium‐Ionen

1965 • 19 citations

Nuclear magnetic resonance studies of N14 bonded to carbon

1965 • 19 citations

N.M.R. Studies on nitrogen-containing sugar derivatives substituted by 15N

1968 • 19 citations

N.M.R. Studies on nitrogen-containing sugar derivatives substituted by 15n.

1968 • 19 citations

High-Resolution Nuclear Magnetic Resonance by Fourier Transformation

1970 • 19 citations

14N-N.M.R. study of the association between paramagnetic and diamagnetic ions in solution

1968 • 18 citations

15N NMR Shifts in 13NH3 Liquid and Vapor

1969 • 18 citations

Heteronuclear double resonance: partially deuteriated ammonium bromide

1968 • 18 citations

14N-H spin couplings in pyrazine methiodides

1968 • 18 citations

Chemical shifts of N14 in the NMR spectra of nitrates, nitrites, and nitro-compounds

1958 • 18 citations

The Kinetics of Ammonia Exchange between Nickel Ammine Complexes and Ammonia in Aqueous and Anhydrous Ammonia Solutions Measured by Nuclear Magnetic Resonance of Nitrogen-14. II

1965 • 18 citations

Electric Quadrupole Contribution to Chemical Shifts in Liquids Induced by Intramolecular Hindered Rotations

1964 • 18 citations

THIAZOLES. IV. PROTON MAGNETIC RESONANCE SPECTRA OF THIAZOLE AND ITS METHYL DERIVATIVES

1960 • 17 citations

NMR demonstration of the rearrangement of 15N-labelled p-anisolediazonium ion

1969 • 17 citations

¹⁴N chemical shifts in some benzthiazoles

1967 • 17 citations

Proton and Nitrogen Magnetic Resonance Spectra and Structure of Nitramide and Nitrourethane

1957 • 17 citations

N¹⁴ and C¹³ Nuclear Magnetic Resonance Studies of Iron Hexacyanides

1963 • 16 citations

Proton Magnetic Resonance Spectra of Thiazoles. Chemical Shifts and Substituent Effects.

1966 • 16 citations

Nuclear Magnetic Resonance Study of Weak Acids in Liquid Ammonia

1965 • 16 citations

A reinvestigation of nitrogen-15 chemical shifts of para-substituted nitrobenzenes

1969 • 15 citations

Spin-Spin Coupling Constant J(14NH) and Spin-Lattice Relaxation TimeT1 of 14N Nucleus in Pyrrole

1968 • 15 citations

Quadrupole Relaxation Broadening of the Magnetic Resonance Spectrum of Methylammonium Ion

1957 • 14 citations

Tautomeri von 2-picolylketonen—I.

1966 • 14 citations

Chemical shifts of N14 in the NMR spectra of compounds containing NH2 and CN groups

1959 • 14 citations

Signs of the nuclear spin-spin coupling constants in ammonia

1967 • 13 citations

Nitrogen-15 Magnetic Resonance Spectroscopy. VII. Chemical Shifts of para-Substituted Nitrobenzenes¹

1966 • 13 citations

15N Isotope tracer study on 3-anilino-1-phenyl-2-pyrazolin-5-one

1968 • 13 citations

Nitrogen Chemical Shifts of Substituted Pyridines

1969 • 12 citations

Nitrogen-15 magnetic resonance spectroscopy. III. Configurational assignments in N-nitrosohydroxylamines.

1969 • 12 citations

Determination of the signs of the¹⁴N–H spin–spin coupling constants in trimethyl vinyl ammonium bromide by heteronuclear magnetic double resonance

1968 • 12 citations

Absorption Type ¹H-{¹⁴N} Double Resonance Spectrometer

1965 • 11 citations

Nitrogen-14 chemical shifts in nitro compounds

1967 • 11 citations

Nuclear magnetic resonance isotope chemical shifts in BH₄^-, CH₄and NH₄⁺

1968 • 10 citations

Chemistry and spectroscopy in strongly acidic solutions. Part XII Imino‐¹⁵N ethylcarbonium ion: NMR spectroscopic identification and rate of deprotonation

1967 • 10 citations

Nitrogen-15 magnetic resonance spectroscopy. IV. Configurational assignments in alkyl nitrites

1969 • 8 citations

Determination of the relative signs of the 14N1H spin coupling constants in ethyl isonitrile by nuclear magnetic resonance double irradiation

1966 • 8 citations

Spectrometer for heteronuclear magnetic double resonance

1966 • 7 citations

The synthesis of o-di-tert-butyl heteroaromatics

1968 • 7 citations

N.M.R. Studies on nitrogen-containing sugar derivatives substituted by 15N. Part III. : The nature of the chelations in sugar osazone-formazans.

1969 • 7 citations

Nitrogen-14 nuclear magnetic resonance studies of trifluoramine oxide, nitrogen trifluoride, and related compounds

1969 • 5 citations

Instrumentation and Measurement of Nuclear Magnetic Triple Resonance Including ¹⁴N Resonance

1968 • 4 citations