Correlations of Nitrogen Coupling Constants with Molecular Structure

High Resolution Nuclear Magnetic Resonance Spectroscopy

1966 • 1,118 citations

Determination of Organic Structures by Physical Methods

1956 • 666 citations

Molecular orbital theory of nuclear spin coupling constants

1964 • 554 citations

Microwave Spectrum and Molecular Structure of Formamide

1960 • 329 citations

Use of Weak Perturbing Radio-Frequency Fields in Nuclear Magnetic Double Resonance

1962 • 328 citations

Tris(dipivalomethanato)europium. Paramagnetic shift reagent for use in nuclear magnetic resonance spectroscopy

1971 • 247 citations

Crystal and Molecular Structures of Benzylideneaniline, Benzylideneaniline‐p‐carboxylic acid and p‐methylbenzylidene‐p‐nitroaniline

1970 • 221 citations

Structure and Exchange Processes in Some Inorganic Fluorides by Nuclear Magnetic Resonance¹

1959 • 211 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

The crystal structure of formamide

1954 • 190 citations

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

1970 • 170 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

NMR evidence of specific base-pairing between purines and pyrimidines

1966 • 160 citations

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

1965 • 133 citations

Barrier to internal rotation of amides. I. Formamide

1970 • 121 citations

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

1964 • 120 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

Progress in nuclear magnetic resonance spectroscopy

1972 • 117 citations

Nitrogen-15 nuclear magnetic resonance spectroscopy. XIII. Pyridine-15N

1971 • 112 citations

Approximate self-consistent molecular orbital theory of nuclear spin coupling. II. Fermi contact contributions to coupling between carbon and directly bonded atoms

1970 • 103 citations

Molecular Conformation of Benzylideneanilines

1971 • 101 citations

Electron Coupling of Nuclear Spins. I. Proton and Fluorine Magnetic Resonance Spectra of Some Substituted Benzenes^1,2

1957 • 100 citations

NUCLEAR MAGNETIC RESONANCE STUDIES OF THE PROTONATION OF WEAK BASES IN FLUOROSULPHURIC ACID: II. AMIDES, THIOAMIDES, AND SULPHONAMIDES

1963 • 83 citations

Nuclear Magnetic Resonance in Chemistry

1966 • 81 citations

Nitrogen-15 nuclear magnetic resonance spectroscopy. Substituent effects on 15N-H coupling constants and nitrogen chemical shifts in aniline derivatives

1971 • 81 citations

Annual review of NMR spectroscopy

1968 • 78 citations

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

1968 • 75 citations

Determination of Organic Structures by Physical Methods

1971 • 75 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

Solvent Effects on the Energy Barrier for Hindered Internal Rotation in Some N,N-Disubstituted Amides

1962 • 72 citations

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

1966 • 70 citations

Nuclear spin–spin coupling between directly bound elements

1969 • 68 citations

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

1964 • 67 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

Nuclear Magnetic Double-resonance Study of the Hindered Internal Rotation in Formamide

1968 • 65 citations

Nitrogen-15 nuclear magnetic resonance shifts in pure methylamines and pure methyl isocyanide-nitrogen-15

1971 • 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

The Nuclear Magnetic Resonance and Infrared Spectra of Aromatic Azomethines

1969 • 58 citations

Double Resonance Spectra of N14 and N15 Ammonium Ion

1962 • 57 citations

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

1961 • 57 citations

Nitrogen-14 nuclear magnetic resonance of some six-membered aromatic heterocycles

1971 • 56 citations

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

1968 • 55 citations

The molecular structure of n-methyldisilylamine

1969 • 54 citations

NMR spectra of aromatic amines and amides-I Correlations of amino proton shifts with Hammett substituents constants with Hückel electron densities

1968 • 53 citations

The synthesis of the perfluoroammonium cation, NF4+

1967 • 52 citations

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

1965 • 51 citations

Preparation and Proton Magnetic Resonance Studies of Anhydrous Ammonia

1957 • 51 citations

Indirect Nuclear Spin—Spin Coupling and Isotope Shifts in the Nuclear Magnetic Resonance of 15NH3, 15NH2D, and 15NHD2

1964 • 50 citations

Untersuchungen über die Struktur von Formazanen I. ¹⁵N‐H‐Kopplung des Chelatwasserstoffatoms

1968 • 49 citations

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

1968 • 49 citations

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

1965 • 49 citations

Nuclear magnetic resonance in chemistry

1965 • 48 citations

An electron diffraction study of the structures of cis- and transN2F2

1967 • 48 citations

NMR spectral studies—IV

1967 • 46 citations

Progress in Nuclear Magnetic Resonance Spectroscopy

1970 • 45 citations

Synthesen mit substituierten Malondialdehyden, VI. Darstellung und Eigenschaften von γ‐Arylazo‐pentamethincyanin‐Farbstoffen

1970 • 44 citations

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

1962 • 43 citations

Nuclear magnetic resonance and mass spectral properties of 5-aryltetrazoles

1968 • 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

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

1969 • 42 citations

Estimation of vicinal phosphorus-31-hydrogen and nitrogen-14-hydrogen spin-spin coupling constants in single conformers

1969 • 42 citations

Reactivity of organic azo-compounds. X. NMR study on azo-hydrazone tautomeric equilibrium in hydroxyazo-compounds

1970 • 41 citations

Tautomerism and Site of Protonation of 1-Methylcytosine: Proof by Nuclear Magnetic Resonance Spin-Spin Coupling

1963 • 40 citations

Nuclear spin-spin interactions

1968 • 40 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

Untersuchung der indirekten Kernspinkopplung zwischen Protonen und Kohlenstoff-13 über mehrere Bindungen

1965 • 38 citations

Absolute Signs of Indirect Nuclear Spin-Spin Coupling Constants

1967 • 38 citations

Nitrogen-15 magnetic resonance spectroscopy. X. Angular dependence of vicinal 15N-H coupling constants in amino acids

1970 • 37 citations

Tris (dipivalomethanato) ytterbium - induced shifts in PMR

1971 • 37 citations

Correlation of N.M.R. chemical shifts of amino protons of anilines with Hammett substituent constants

1964 • 37 citations

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

1969 • 37 citations

The Assignment of N.M.R. Spectra Using the Nuclear Overhauser Effect

1963 • 36 citations

THE AMINO PROTON SHIFTS OF SOME SUBSTITUTED ANILINES IN CYCLOHEXANE

1965 • 35 citations

Spectroscopic studies of keto–enol equilibria. Part XIII.¹⁵N-substituted imines

1971 • 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

Aqueous fluorination of nitronate salts

1968 • 33 citations

The electronic effect of lone pairs on the nuclear spin coupling constants

1969 • 33 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

Tautomerism in 1-phenylazo-2-naphthols by use of nitrogen-14 nuclear magnetic resonance data

1968 • 31 citations

Restricted rotation of the amino group in 1-methylcytosine

1971 • 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

¹³C nuclear magnetic resonance studies.¹³C–¹⁴N spin coupling constants in isocyanides

1970 • 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

Localized Saturation Effects in Nuclear Magnetic Double Resonance

1968 • 28 citations

Chemistry of trifluoramine oxide. I. Synthesis and characterization of trifluoramine

1968 • 27 citations

Hydrazin‐Reaktionen, X Untersuchungen an inversionsisomeren 1‐Chlor‐und 1‐Amino‐aziridinen Abhängigkeit der ¹H–C–¹⁴N‐Kopplung von der Konformation des freien Elektronenpaares

1970 • 27 citations

Correlation of the C–H Stretching Force Constant with the Nuclear 13C–H Coupling Constant

1966 • 27 citations

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

1969 • 27 citations

Nuclear relaxation and molecular properties

1969 • 26 citations

Spectroscopic studies of keto-enol equilibria-X

1967 • 26 citations

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

1964 • 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

N.M.R. spectra of molecules containing quadrupolar nuclei

1970 • 25 citations

A Nuclear Magnetic Resonance Study of Diethylamine Hydrogen Bonding¹

1966 • 25 citations

REACTIONS OF AMIDES AND RELATED COMPOUNDS: III. N.M.R. INVESTIGATION OF THE PROTONATION OF N,N-DIMETHYLNITROSOAMINE, N,N-DIETHYLNITROSOAMINE, AND N-NITROSOPIPERIDINE

1966 • 24 citations

Spectroscopic studies of isotopically substituted 2-pyridones

1968 • 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

Nuclear Spin—Spin Interactions. V. 1H–14N Spin—Spin Coupling and Quadrupolar Relaxation in Quaternary Ammonium Salts

1965 • 23 citations

Hindered rotation about the carbon-nitrogen single in N′-aryl-N,N-dimethylformamidines

1967 • 23 citations

Nitrogen-15 magnetic resonance spectroscopy. Solvent effects on 1J(15NH) and hydrogen bonding in ortho-substituted anilines

1971 • 23 citations

Magnetic shielding of acetylenic protons in substituted phenylacetylenes

1963 • 22 citations

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

1968 • 22 citations

THE NUCLEAR MAGNETIC RESONANCE SPECTRUM OF VINYLENE CARBONATE

1966 • 22 citations

Stable carbonium ions. LXXI. Protonated imides

1968 • 22 citations

N.M.R. spectra of molecules containing quadrupolar nuclei

1968 • 22 citations

Double Resonance Proton Spectra of Amides

1965 • 21 citations

Eu(DPM)3-induced shifts in substituted anilines. The importance of basicity and steric effects

1971 • 21 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

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

1967 • 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

Synthesen mit substituierten Malondialdehyden, V. Zur Darstellung und Struktur von Arylazomalondialdehyden (Mesoxaldialdehyd‐2‐phenylhydrazonen)

1970 • 19 citations

Stereospecific chemical shifts and coupling constants in 15N-oxaziridines

1970 • 19 citations

Nitrogen-15 magnetic resonance studies. Further evidence for the dependence of 1J(15NH) on the hybridization of nitrogen

1970 • 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

N-versus O-protonation. Evidence from nuclear magnetic resonance spectra of [15N]acetamide in fluorosulphuric acid

1971 • 18 citations

A ¹⁴N nuclear magnetic resonance study on nitrogen–oxygen–halogen compounds

1969 • 18 citations

Heteronuclear double resonance: partially deuteriated ammonium bromide

1968 • 18 citations

14N-H spin couplings in pyrazine methiodides

1968 • 18 citations

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

1969 • 17 citations

15N-H coupling constants and nitrogen shifts in some substituted [15N]aniline derivatives

1969 • 17 citations

The n.m.r. spectroscopy of derivatives of 6-amino-6-deoxy-d-glucose-6-15N. 13C Fourier-transform and internuclear, double- and triple-resonance studies

1971 • 17 citations

Nitryl Fluoride: A New Method of Preparation, Nuclear Magnetic Spectrum and Structure

1956 • 17 citations

Studies of 15N-labeled amino sugars. Synthesis and spectroscopy of derivatives of 6-amino-6-deoxy-d-glucose-6-15N

1969 • 16 citations

Proton magnetic resonance studies of hydrogen bonding of formamide with bromide ion in solution. The non-equivalence of the amide hydrogens

1969 • 16 citations

Nitrogen-15 chemical shifts in ring-substituted benzamides and benzonitriles

1972 • 16 citations

Nuclear magnetic resonance study of the exchange rates of the peptide protons of glycylglycine and triglycine in water an aqueous urea.

1970 • 16 citations

Sub-spectral analysis of the 100 MHz P.M.R. spectrum of¹⁵N-pyrrole

1970 • 16 citations

Proton-carbon spin-spin couplings of the halogeno-acetylenes

1970 • 15 citations

Proton Magnetic Resonance Spectrum of 2-Chloroaniline-¹⁵N. Long-range Coupling Constants to Amino Protons from all Ring Protons

1971 • 15 citations

Difluoroaminooxyperfluoromethane, CF₃ONF₂

1965 • 15 citations

Nitrogen-15 nuclear magnetic resonance shifts and coupling constants for the methylamine hydrochlorides in aqueous solution

1971 • 15 citations

15N magnetic resonance spectroscopy—XI. Nitrogen-proton spin-spin coupling as source of proton resonance line broadening in amino acids

1970 • 15 citations

Tautomerism in 1,5-dianilino-4,8-naphthoquinones

1971 • 15 citations

Nuclear magnetic resonance study of the exchange rates of the peptide protons of glycylglycine and triglycine in water and aqueous urea

1970 • 14 citations

Quadrupole Relaxation Broadening of the Magnetic Resonance Spectrum of Methylammonium Ion

1957 • 14 citations

Tautomeri von 2-picolylketonen—I.

1966 • 14 citations

The nature of the bonding in some P–N, As–N, and S–N compounds

1970 • 14 citations

Signs of the nuclear spin-spin coupling constants in ammonia

1967 • 13 citations

Proton nuclear magnetic resonance spectra of free and hydrogen-bonded thiocyanic, cyanic, and hydrazoic acids

1970 • 13 citations

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

1968 • 13 citations

The Proton Magnetic Resonance Spectrum of ¹⁵N-Pyrrole

1969 • 13 citations

Nitrogen-15 magnetic resonance spectroscopy. II. Configurational assignments and intramolecular hydrogen-bonding in n-nitrosohydrazines

1968 • 12 citations

Correlations of proton chemical shifts of hydroxyl and methine groups in the NMR spectra of hydroxy derivatives of Schiff bases with Hammett σ constants

1968 • 12 citations

Nitramines and nitramides. Part XIII. Nuclear magnetic resonance spectra

1968 • 12 citations

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

1969 • 12 citations

Further Nuclear Magnetic Resonance and Electron Paramagnetic Resonance Studies on the System N₂F₄⇋ 2NF₂

1963 • 12 citations

Stereospecific geminal 15N,H coupling constants in 2-(α-naphthyl)aziridine-15N

1970 • 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

Electronic structure of the thiotrithiazyl cation

1969 • 12 citations

Spin–spin coupling in secondary amines. The first observation of coupling by amine protons in strongly basic amines

1970 • 12 citations

The sign of the¹⁵N–³¹P coupling constant

1970 • 11 citations

Fluorine nuclear magnetic resonance spectra of compounds containing nitrogen-14 atoms

1969 • 11 citations

1H-NMR-spektrum und struktur des benzolazo-acetoacetaldehyds

1971 • 11 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 oxide trifluoride

1966 • 10 citations

Nuclear spin–spin interactions. Effect of nitrogen lone-pair orientation on geminal¹⁵N–¹H spin–spin coupling

1967 • 10 citations

A Nuclear Magnetic Resonance Study of Hydrogen Bonding in Tris(2-N-methylaminoethyl) Borate and Similar Compounds

1966 • 10 citations

Relative Signs of NMR Coupling Constants and Isotope Shifts in Ammonium Ions

1968 • 9 citations

Hückel M O calculations correlating amino proton shifts, basic strengths, and hammett substituent constants for substituted anilines

1969 • 9 citations

Solvent effects on the conformations of ortho-nitroanilines

1967 • 8 citations

Study on N&lt;SUP&gt;15&lt;/SUP&gt;-H Spin-Spin Coupling of 4-Nitroquinoline 1-Oxides Containing Deuterium and/or Nitrogen-15

1965 • 8 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

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 couplings in aliphatic nitramines

1968 • 6 citations

Nuclear spin–spin interactions.¹⁴N–¹H spin–spin coupling in quaternary enammonium salts

1966 • 6 citations

Nitrogen-15 magnetic resonance spectroscopy. Configuration of N-nitrosamines

1968 • 6 citations

The elusive (p→d)–π bond

1966 • 6 citations

The nitrogen-14 NMR chemical shifts of some Group IV isothiocyanates

1971 • 5 citations

Hindered rotation about the N–aryl bond in anilines

1971 • 4 citations

The sign of indirect¹⁴N–¹H spin couplings in trimethylvinylammonium bromide

1966 • 4 citations

Solvent and Temperature Effects on Nitrogen Nuclear Spin Relaxation in Methyl Nitrate

1971 • 4 citations

Annual review of NMR spectroscopy

1971 • 4 citations

Protonation of¹⁵N-Nitrosamines. The Structure of the Conjugate Acid

1970 • 4 citations

Application of Homonuclear INDOR to a Study of the PMR Spectrum of ¹⁵N-pyrrole

1971 • 4 citations

Non-equivalence of NH protons and configuration of protonated amides

1971 • 3 citations

Solvent effect on hydrogen bonding in ortho-nitroanilines

1968 • 3 citations

14N chemical shifts in some hydroxyquinolines

1967 • 3 citations

THERMODYNAMIC FUNCTIONS OF THE PARTIALLY DEUTERATED METHYL HALIDES AS ANHARMONIC OSCILLATORS

1965 • 2 citations

Solvent effects on hydrogen bonding in ortho-nitroanilines

1966 • 1 citations