CHEMISTRY OF THE COMPLEXES OF URANYL AND PLUTONYL IONS WITH ORGANIC LIGANDS

1965 ◽  
Vol 43 (7) ◽  
pp. 2052-2058 ◽  
Author(s):  
P. V. Balakrishnan ◽  
S. K. Patil ◽  
H. D. Sharma ◽  
H. V. Venkatasetty
Keyword(s):  
Magnetic Susceptibility ◽  
Infrared Spectra ◽  
Organic Ligands ◽  
Uranyl Complexes

A series of complexes of uranyl and plutonyl ions with different organic ligands have been prepared and investigated by infrared spectra and magnetic susceptibility measurements. The uranyl complexes were found to be weakly diamagnetic and the plutonyl complex was found to be paramagnetic. Two ligand series are defined on the basis of the infrared asymmetric stretching frequency of the uranyl and plutonyl groups.

The Preparation, Properties, and some Complexes of Anhydrous Manganese(III) Nitrate

1972 ◽  
Vol 50 (20) ◽  
pp. 3326-3331 ◽  
Author(s):  
D. W. Johnson ◽  
D. Sutton
Keyword(s):  
Magnetic Susceptibility ◽  
High Spin ◽  
Infrared Spectra ◽  
Phosphine Oxide ◽  
Organic Ligands ◽  
Triphenyl Phosphine ◽  
Dinitrogen Pentoxide ◽  
Triphenyl Phosphine Oxide

Manganese(III) nitrate and its dinitrogen pentoxide "adduct" have been prepared by the reaction of N2O5 with MnF3. Infrared spectra and magnetic susceptibility measurements show these compounds to contain high-spin manganese(III) coordinated by nitrate groups and the "adduct" to be the nitronium salt, [NO2]+[Mn(NO3)4]−. The syntheses of complexes of Mn(NO3)3 with some organic ligands, e.g., 2,2′-bipyridyl, o-phenanthroline, acetonitrile, and triphenyl phosphine oxide are described.

Correlation of Magnetic Susceptibility and Infrared Spectra of FeF2

1968 ◽  
Vol 39 (2) ◽  
pp. 1141-1142 ◽  
Author(s):  
J. W. Stout ◽  
M. I. Steinfeld ◽  
M. Yuzuri
Keyword(s):  
Magnetic Susceptibility ◽  
Infrared Spectra

Basic halides and related species of molybdenum(III). II. Spectroscopic and magnetic properties of MoOF(H2O)3 and MoOCl(H2O)3

1976 ◽  
Vol 29 (4) ◽  
pp. 717 ◽  
Author(s):  
DJ Stabb
Keyword(s):  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Absorption Spectroscopy ◽  
Infrared Spectra ◽  
Electronic Spectra ◽  
Related Species ◽  
Bound Water ◽  
Temperature Range ◽  
Field Dependent

Two basic halides of molybdenum(111), namely MoOF(H2O)3 and MoOCl(H2O)3 (some samples containing additional loosely bound water), were investigated by absorption spectroscopy in the range 200-50000 cm-1, and by magnetic susceptibility measurements over a temperature range of 100-300 K. Infrared spectra showed bands at about 670 and 1600 cm-l, but not in the range 800-1100 cm-1. Electronic spectra showed poorly defined bands superimposed on strong general absorption. Very weak paramagnetism was observed: this was field dependent. The results are interpreted to show the compounds to be oxygen-bridged polymers [MOX(H2O)3O]n, rather than species containing Mo=O or Mo-0-H groups.

Synthesis, structure, and properties of poly-bis(μ-diethylphosphinato)copper(II)

1982 ◽  
Vol 60 (15) ◽  
pp. 2017-2022 ◽  
Author(s):  
Katherine W. Oliver ◽  
Steven J. Rettig ◽  
Robert C. Thompson ◽  
James Trotter
Keyword(s):  
Molecular Structure ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Infrared Spectra ◽  
Field Model ◽  
Direct Methods ◽  
Coordination Geometry ◽  
Structure And Properties ◽  
Tetrahedral Coordination ◽  
Full Matrix

The preparation, magnetic properties, electronic and infrared spectra, and molecular structure of poly-bis(μ-diethylphosphinato)copper(II) are described. Crystals of poly-bis(μ-diethylphosphinato)copper(II) are triclinic, a = 7.700(1), b = 9.807(1), c = 10.101(1) Å, α = 90.48(1), β = 104.77(1), γ = 112.21(1)°, Z = 2, space group [Formula: see text]. The structure was solved by direct methods and was refined by full-matrix least-squares procedures to R = 0.025 and Rw = 0.032 for 3491 reflections with I ≥ 3σ(I). The polymeric structure consists of Cu atoms with flattened tetrahedral coordination geometry linked by double phosphinate bridges. Mean bond lengths (corrected for libration) are: Cu—O, 1.924(3), P—O, 1.526(4), and P—C, 1.807(4) Å. Assignment of the electronic spectrum using a crystal field model gives Dq = 1665 cm−1 and Cp = 1800 cm−1. Magnetic susceptibility studies give no evidence for magnetic concentration over the temperature range 80 to 300 K.

Some studies in inorganic complexes. XX. Further reactions of 2-thioaminopyridine

1966 ◽  
Vol 19 (11) ◽  
pp. 2059 ◽  
Author(s):  
GJ Sutton
Keyword(s):  
Magnetic Susceptibility ◽  
Nitrogen Atom ◽  
Absorption Spectra ◽  
Infrared Spectra ◽  
Visible Region ◽  
Metal Chelates ◽  
Sulphur Atom ◽  
Inorganic Complexes

The following complexes of 2-thioamidopyridine (thiopic) were prepared and studied : [RhCl2 thiopic2]Cl,2H2O; [RhCl2 thiopic2][RhCl4 thiopic]; [RhCl, thiopic2]ClO4; [RhBr2 thiopic2]ClO4; [RhI2 thiopic2]ClO4,H2O; [Rh thiopic3][ClO4]3; [Ag thiopic]ClO4; [AuCl2 thiopic][AuCl4]; [Au thiopic2][AuI2]; [RuCl2 thiopic2], C2H5OH; [Os thiopic3]Br3; [Cr thiopic3]Br3; [MnI3 thiopic2]; [In thiopic3]Cl3,H2O. The following substances were also prepared and studied: [RhI2 pic2]I2,H2O; [RhCl, en,]Cl,H2O; [Rh phenan3]Br3 (where pic is 2-aminomethylpyridine, en is ethylenediamine, and phenan is 1,10-phenanthroline). The conductances of all of the aforementioned substances in NN?-dimethylformamide agreed with their structures as metal chelates as indicated. Studies of absorption spectra in the visible region were also made, and infrared spectra showed that bonding had occurred through the sulphur atom of the -C(=S)NH, group in the case of rhodium(III), gold(I), gold(III), ruthenium(II), osmium(III), and silver(I) complexes, whereas with chromium(III), manganese(II), and indium(III) coordination was by the nitrogen atom. Measurements of magnetic susceptibility showed that the rhodium(III), gold(I), gold(III), ruthenium(II), and osmium(III) complexes were spin-paired, whereas those of chromium(III) and manganese(II) were spin free.

Cyanato - Kupfer (II) - Komplexe mit organischen Liganden, XX [1]. ESR- und magnetische Untersuchung des Dicyanato-bis(pyridin)kupfer(II)-Komplexes / Cyanato-Copper(II) Complexes with Organic Ligands, XX [1]. ESR and Magnetic Study of Dicyanato-bis(pyridine)copper(II)

1982 ◽  
Vol 37 (1) ◽  
pp. 102-104 ◽  
Author(s):  
Jiří Kohout ◽  
Jerzy Mroziński ◽  
Mária Hvastijová
Keyword(s):  
Molecular Structure ◽  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Room Temperature ◽  
Crystal And Molecular Structure ◽  
Esr Spectra ◽  
Organic Ligands ◽  
Magnetic Study ◽  
Esr Spectrum ◽  
Reversed Line

Abstract The ESR spectra and the temperature dependence of the magnetic susceptibility of Cu(NCO)2(pyridine)2 were measured. The ESR spectrum at room temperature shows a single reversed line; at -130 °C it is isotropic. The susceptibility down to 4.2 K obeys the Curie-Weiss law with a small θ value. These results are interpreted on the basis of the known crystal and molecular structure.

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