Macrocyclic ligands for uranium complexation: Progress report, August 15, 1986--January 28, 1989

Potts, K T

Title: Macrocyclic ligands for uranium complexation: Progress report, August 15, 1986--January 28, 1989

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Abstract

Macrocycles, designed for complexation of the uranyl ion by computer modeling studies and utilizing six ligating atoms in the equatorial plane of the uranyl ion, have been prepared and their ability to complex the uranyl ion evaluated. The ligating atoms, either oxygen or sulfur, were part of acylurea, biuret or thiobiuret subunits with alkane chains or pyridine units completing the macrocyclic periphery. The macrocycles studied formed uranyl complexes in solution but no crystalline complexes have been isolated to date. Acyclic ligands containing the same atoms in equivalent functional entities were found to form a crystalline 1:1 uranyl-ligand complex whose structure was established by X-ray data. This complex underwent a facile, DMSO-induced rearrangement to a 2:1 uranyl-ligand complex whose structure was also established by X-ray data. The intermediates to the macrocycles all behave as excellent ligands for the complexation of transition metals. Acylthiourea complexes of copper and nickel as well as intermolecular, binuclear copper and nickel complexes of bidentate carbonyl thioureas formed readily and their structures were established in several representative instances by X-ray structural determinations. Tetradentate bis(carbonylthioureas) were found to be very efficient selective reagents for the complexation of copper in the presence of nickel ions. 21 refs., 7 figs.,more » 10 tabs.« less

Authors:: Potts, K T

Publication Date:: Sat Jan 28 00:00:00 EST 1989

Research Org.:: Rensselaer Polytechnic Inst., Troy, NY (USA). Dept. of Chemistry

OSTI Identifier:: 6414559

Report Number(s):: DOE/ER/13583-3
ON: TI89006910

DOE Contract Number:: FG02-86ER13583

Resource Type:: Technical Report

Resource Relation:: Other Information: Paper copy only, copy does not permit microfiche production

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; COPPER COMPLEXES; CHEMICAL PREPARATION; LIGANDS; NICKEL COMPLEXES; URANYL COMPLEXES; ABSORPTION SPECTRA; CARBONYLS; CHELATES; HYDROGEN 1; MOLECULAR STRUCTURE; NMR SPECTRA; ORGANIC SULFUR COMPOUNDS; PROGRESS REPORT; RECOVERY; THIOUREAS; ACTINIDE COMPLEXES; CARBONIC ACID DERIVATIVES; COMPLEXES; DOCUMENT TYPES; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; SPECTRA; STABLE ISOTOPES; SYNTHESIS; TRANSITION ELEMENT COMPLEXES; URANIUM COMPLEXES; 400201* - Chemical & Physicochemical Properties

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                    Potts, K T. Macrocyclic ligands for uranium complexation: Progress report, August 15, 1986--January 28, 1989.  United States: N. p., 1989. 
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                    Potts, K T. Macrocyclic ligands for uranium complexation: Progress report, August 15, 1986--January 28, 1989.  United States.

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                    Potts, K T. 1989.  
        "Macrocyclic ligands for uranium complexation: Progress report, August 15, 1986--January 28, 1989".  United States.

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@article{osti_6414559,

  title        = {Macrocyclic ligands for uranium complexation: Progress report, August 15, 1986--January 28, 1989},

  author       = {Potts, K T},

  abstractNote = {Macrocycles, designed for complexation of the uranyl ion by computer modeling studies and utilizing six ligating atoms in the equatorial plane of the uranyl ion, have been prepared and their ability to complex the uranyl ion evaluated. The ligating atoms, either oxygen or sulfur, were part of acylurea, biuret or thiobiuret subunits with alkane chains or pyridine units completing the macrocyclic periphery. The macrocycles studied formed uranyl complexes in solution but no crystalline complexes have been isolated to date. Acyclic ligands containing the same atoms in equivalent functional entities were found to form a crystalline 1:1 uranyl-ligand complex whose structure was established by X-ray data. This complex underwent a facile, DMSO-induced rearrangement to a 2:1 uranyl-ligand complex whose structure was also established by X-ray data. The intermediates to the macrocycles all behave as excellent ligands for the complexation of transition metals. Acylthiourea complexes of copper and nickel as well as intermolecular, binuclear copper and nickel complexes of bidentate carbonyl thioureas formed readily and their structures were established in several representative instances by X-ray structural determinations. Tetradentate bis(carbonylthioureas) were found to be very efficient selective reagents for the complexation of copper in the presence of nickel ions. 21 refs., 7 figs., 10 tabs.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6414559},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Jan 28 00:00:00 EST 1989},

  month        = {Sat Jan 28 00:00:00 EST 1989}

}

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