Complexes of lanthanide iodides with 3-methylpyridine-1-oxide

Complexes of lanthanide iodides with 3-methylpyridine-1-oxide of the formula Ln(3-MePyO)8I3.xH2O where x = 0 for Ln = La and Tb, x = 1 for Ln = Pr, and x = 2 for Ln = Nd, Sm, Dy, Yb, and Y have been prepared and characterized by chemical analyses, conductance, infrared, proton nmr, and DTA data. Infrared and proton nmr data have been interpreted in terms of the coordination of the ligand to the metal ion through the oxygen of the N—O group. Proton nmr spectrum of the Yb(III) complex is indicative of a restricted rotation of the pyridine ring about the N—O bond.

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Application of NMR Spectroscopy to the Study of Piperidine Derivatives. Part III: Molecular Dynamics Study of N-Benzyl-4-[N-Benzyloxyacetyl)-(2-Fluorophenyl)]Amino-3-Methyl Piperidine

Applied Spectroscopy ◽

10.1366/0003702934066596 ◽

1993 ◽

Vol 47 (3) ◽

pp. 357-359 ◽

Cited By ~ 1

Author(s):

A. L. Cholli ◽

M. L. Lau

Keyword(s):

Molecular Dynamics ◽

Nmr Spectroscopy ◽

High Resolution ◽

Detailed Analysis ◽

Room Temperature ◽

Variable Temperature ◽

Proton Nmr ◽

Nmr Spectrum ◽

H Nmr ◽

Nmr Data

High-resolution 1H NMR has been used to study the molecular dynamics of the piperidine derivative. Detailed analysis of variable temperature NMR data allowed the identification of the origin of two sets of methyl resonance peaks with unequal intensities in the room-temperature proton NMR spectrum of the compound.

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A comparison of the chemical analyses of cell lipids with their complete proton NMR spectrum

Magnetic Resonance in Medicine ◽

10.1002/mrm.1910040607 ◽

1987 ◽

Vol 4 (6) ◽

pp. 567-574 ◽

Cited By ~ 15

Author(s):

K. T. Holmes ◽

P. G. Williams ◽

N. J. C. King ◽

G. L. May ◽

M. Dyne ◽

...

Keyword(s):

Proton Nmr ◽

Chemical Analyses ◽

Nmr Spectrum

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Metal ion – biomolecule interactions. IV. Methylmercury(II) complexes of l-methylimidazoline-2-thione (methimazole), a potentially useful protective agent in organomercurial intoxication

Canadian Journal of Chemistry ◽

10.1139/v82-434 ◽

1982 ◽

Vol 60 (24) ◽

pp. 3033-3038 ◽

Cited By ~ 30

Author(s):

Erwin Buncel ◽

Albert R. Norris ◽

Spencer E. Taylor ◽

William J. Racz

Keyword(s):

Metal Ion ◽

Analytical Data ◽

Free Ligand ◽

Binding Mode ◽

Protective Agent ◽

Nmr Spectrum ◽

H Nmr ◽

High Affinity ◽

Nmr Data ◽

Tautomeric Forms

Two 1:1 methylmercury(II)-1-methylimidazoline-2-thione (methimazole, MeImSH) complexes, [MeHg(MeImSH)]NO3 and [MeHg(MeImS)], have been isolated from aqueous solution under acidic and basic conditions, respectively. 1H nmr and ir spectroscopy, as well as analytical data, were used to characterize the complexes. The nmr data, in particular, lead to the conclusion that the principal binding mode under both sets of conditions involves the sulfur atom at C2. However, under conditions of 2:1 (MeHgII:MeImSH) stoichiometry, binding to N3 is also found to occur. These interpretations have necessitated a reexamination of the 1H nmr spectrum of the free ligand, in particular with respect to assignment of NH and SH resonances corresponding to the two possible tautomeric forms. It has been found in this work that 1-methylimidazoline-2-thione shows a high affinity for MeHgII binding, which may be pertinent with respect to a previous report concerning the protective nature of this compound in organomercurial intoxication.

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Solution behavior and complete proton and carbon-13 NMR assignments of the coenzyme B12 derivative (5'-deoxyadenosyl)cobinamide using modern 2D NMR experiments, including 600 MHz proton NMR data

Journal of the American Chemical Society ◽

10.1021/ja00186a051 ◽

1989 ◽

Vol 111 (4) ◽

pp. 1484-1491 ◽

Cited By ~ 26

Author(s):

Thomas G. Pagano ◽

Paulos G. Yohannes ◽

Benjamin P. Hay ◽

Jerry R. Scott ◽

Richard G. Finke ◽

...

Keyword(s):

Nmr Assignments ◽

Proton Nmr ◽

2D Nmr ◽

Coenzyme B12 ◽

Solution Behavior ◽

Nmr Data

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Water soluble metal-polymeric complexes of gallium and triple co-polymer of N-vinylpyrrolidone with N-vinylformamide and N-vinylminodiacetic acid

Доклады Академии наук ◽

10.31857/s0869-56524853306-310 ◽

2019 ◽

Vol 485 (3) ◽

pp. 306-310

Author(s):

N. I. Gorshkov ◽

A. Yu. Murko ◽

I. I. Gavrilova ◽

I. I. Malakhova ◽

V. D. Krasikov ◽

...

Keyword(s):

Molecular Weight ◽

1H Nmr ◽

Metal Ion ◽

Water Soluble ◽

Polymer Complex ◽

Nmr Data ◽

Exclusion Chromatography ◽

Polymeric Complexes ◽

Metal Polymer

A terpolymer with a molecular weight of 45 kDa containing 7 mol.% of vinylamine units, 80 mol.% of vinylpyrrolidone, and 3 mol.% of vinyliminodiacetic acid units has been synthesized. Its complexation with Ga3+ ion has been studied by HPLC. The resulting metal–polymer complex has been characterized by exclusion chromatography and spectral (IR, 1H NMR) data. The complex has a monomolecular structure where the metal ion acts as an anchor fragment between vinyliminodiacetic acid units and is stable in the reaction of interligand exchange with histidine.

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