Organic compounds of uranium. Reactions of uranium pentaethoxide with β-diketones

1967 ◽  
Vol 20 (2) ◽  
pp. 233 ◽  
Author(s):  
AM Bhandari ◽  
RN Kapoor
Keyword(s):  
Organic Compounds ◽  
Butyl Alcohol ◽  
Molecular Weights ◽  
Boiling Points ◽  
Derivatives Of

The reactions of uranium pentaethoxide with β-diketones (acetylacetone and benzoylacetone) have been studied and derivatives of the type U(OEt)5-xLx (where L = acetylacetone or benzoylacetone; x = 1, 2, or 3) have been isolated. These derivatives interchange their ethoxy groups with tertiary butoxy groups on refluxing with t-butyl alcohol. The molecular weights and boiling points of some of the typical derivatives have been determined and recorded.

Organic compounds of gallium. III. Reactions of gallium alkoxides with acetylacetone, ethyl acetoacetate, methyl acetoacetate, and methyl salicylate

1969 ◽  
Vol 47 (14) ◽  
pp. 2661-2663 ◽  
Author(s):  
R. C. Mehrotra ◽  
S. R. Bindal
Keyword(s):  
Organic Compounds ◽  
Organic Solvents ◽  
Infrared Spectra ◽  
Ethyl Acetoacetate ◽  
Methyl Salicylate ◽  
Methyl Acetoacetate ◽  
Reduced Pressure ◽  
Molecular Weights ◽  
Molar Ratios ◽  
Derivatives Of

Derivatives of gallium of the type: Ga(i-C3H7O)3−xligx (x = 1, 2, or 3; and H lig = acetylacetone, methyl and ethyl acetoacetate, or methyl salicylate) have been synthesized by reacting gallium alkoxides with ligands in various molar ratios. The compounds are soluble in organic solvents and could be volatilized under reduced pressure. Their molecular weights have been determined ebullioscopically. The infrared spectra of some of the compounds have been studied.

Synthesis, spectroscopic, and magnetic studies of new alkoxy and allied bimetallic derivatives of nickel(II) with aluminium

1984 ◽  
Vol 62 (6) ◽  
pp. 1003-1007 ◽  
Author(s):  
R. C. Mehrotra ◽  
Jagvir Singh
Keyword(s):  
Butyl Alcohol ◽  
Amyl Alcohol ◽  
Octahedral Geometry ◽  
Tertiary Butyl Alcohol ◽  
Magnetic Studies ◽  
Tertiary Butyl ◽  
Magnetic Susceptibilities ◽  
Molecular Weights ◽  
Visible Reflectance ◽  
Derivatives Of

Nickel(II) tetraisopropoxyaluminate undergoes alcoholysis reactions with various alcohols and acetylacetone to yield products with the composition: Ni[Al(OR)4]2 (when ROH = methanol, ethanol, 2,2,2-trifluoroethanol, 2,2,2-trichloroethanol, n-butanol, and 1,3-dichloro-2-propanol); Ni[Al(O-i-Pr)(O-t-Bu)3]2 (with tertiary butyl alcohol); Ni[Al(O-i-Pr)2(O-t-Am)2]2 (with tertiary amyl alcohol); and Ni[Al(O-i-Pr)2(acac)2] (with acetylacetone). On the basis of their visible reflectance and infrared spectra along with molecular weights and magnetic susceptibilities, and octahedral geometry is tentatively suggested for these complexes in the solid state with indications of an equilibrium between tetrahedral and octahedral forms in solution. The alkoxy ligands have also been fitted into the spectrochemical and nephelauxetic series.

Schiff Base Derivatives of Lanthanons / Synthesis of La(III) Pr(III) and Nd(III) Derivatives of Ethylenediamine Bis-2,4-pentanedione

1975 ◽  
Vol 30 (1-2) ◽  
pp. 50-54 ◽  
Author(s):  
S. K. Agarwal ◽  
J. P. Tandon
Keyword(s):  
Molecular Weight ◽  
Schiff Base ◽  
Butyl Alcohol ◽  
Exchange Reactions ◽  
Molecular Weights ◽  
Tetradentate Schiff Base ◽  
Schiff Base Derivatives ◽  
Tert Butyl Alcohol ◽  
Derivatives Of

The 1:1 and 2:3 molar reactions of La(III), Pr(III) and Nd(III) isopropoxides with the bifunctional tetradentate Schiff base, ethylenediamine bis-2,4-pentanedione [AA2(CH2)2H2] have been investigated in the medium of dry benzene.Ln(O-i-C3H7) [AA2(CH2)2] and Ln2[AA2(CH2)2]3 [where, Ln = La(III), Pr(III) or Nd(III) and AA2(CH2)2- 2 anion of the corresponding Schiff base, AA2(CH2)2H2] type of compounds have been obtained in almost quantitative yields and in a state of sufficient purity. The 1:1 derivatives have been shown to undergo exchange reactions with an excess of tert-butyl alcohol leading to the formation of Ln(O-tert-C4H9) [AA2(CH2)2] [where, Ln = La(III), Pr(III) or Nd(III)] type of derivatives. The ebullioscopic determination of molecular weights shows that the 1:1 derivatives are dimeric, whereas 2:3 derivatives are monomeric in boiling benzene. On the basis of elemental analysis, exchange reactions, molecular weight determinations and IR spectra, plausible structures for the resulting 1:1 and 2:3 complexes have been indicated.

Identification of Crosslinked Fibrin Degradation Products in Plasma of Patients During Fibrinolytic Therapy Using a Heat Extraction/SDS-Polyacrylamide Gradient Gel Electrophoretic Technique

1979 ◽  
Author(s):  
C.W. Francis ◽  
V. J. Marder ◽  
S.E. Martin
Keyword(s):  
Degradation Products ◽  
Fibrinolytic Therapy ◽  
Heat Extraction ◽  
Molecular Weights ◽  
Fibrin Degradation Products ◽  
Normal Plasma ◽  
Electrophoretic Technique ◽  
Gradient Gel Electrophoresis ◽  
Derivatives Of

To quantitate plasmic degradation products of crosslinked fibrin in plasma, a technique has been developed which employs heat precipitation, SDS-polyacrylamide gradient gel electrophoresis of the dissolved, reduced heat precipitate, and quantitation by densitometrie analysis of γ-γ derivatives identified in the stained get. When studied with this sensitive electrophoretic technique, plasmic digests of purified crosslinked fibrin were found to contain a heterogeneous group of γ-γ chain derivatives with molecular weights between 76,000 and 100,000 daltons. In samples of normal plasma to which digests of crosslinked fibrin had been added, this heat extraction/ge1 electrophoretic technigue allowed the detection of γ-γ derivatives with a sensitivity of 20 µg/ml. Derivatives of γ-γ chains with molecular weights of 82,000 and 86,000 daltons have been identified in the plasma of patients with DIC and during fibrinolytic therapy but were not found in normal plasma or in normal plasma treated in vitro with urokinase. This quantitative assay can be performed in 24 hours and appears to be of value in judging the efficacy of thrombolytic therapy.

Direct synthesis of organic derivatives of silicon using nonhalogenated organic compounds

1970 ◽  
Vol 9 (5) ◽  
pp. 1071-1075 ◽  
Author(s):  
William E. Newton ◽  
Eugene G. Rochow
Keyword(s):  
Organic Compounds ◽  
Direct Synthesis ◽  
Derivatives Of

A study of the sulphur derivatives of butyl alcohol

1920 ◽  
Vol 190 (1) ◽  
pp. 127
Author(s):  
H.LeB. Gray ◽  
Gurney C. Gutekunst
Keyword(s):  
Butyl Alcohol ◽  
Derivatives Of
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