In situ hydrothermal reduction of neptunium(VI) as a route to neptunium(IV) phosphonates.

Inorg Chem

Department of Chemistry and Biochemistry and Center for Actinide Science, Auburn University, Auburn, AL 36849, USA.

Published: December 2007

AI Article Synopsis

  • A new compound containing neptunium(IV) methylphosphonate has been created using hydrothermal methods, reducing neptunium(VI) to neptunium(IV).
  • The structure consists of polar layers held together by hydrogen bonds and water molecules located between the layers.
  • Magnetic studies indicate that the neptunium(IV) ions in the compound function independently and do not interact magnetically.

Article Abstract

A lamellar neptunium(IV) methylphosphonate, Np(CH3PO3)(CH3PO3H)(NO3)(H2O).H2O, has been prepared under hydrothermal conditions via the in situ reduction of NpVI to NpIV. The single crystal structure of this compound shows polar layers that are joined to one another via a hydrogen-bonding network involving interlayer water molecules. Magnetic susceptibility measurements demonstrate that the NpIV ions are magnetically isolated from one another.

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Source
http://dx.doi.org/10.1021/ic702136hDOI Listing

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