Communication

Optical Absorption and Structure of a Highly Symmetrical Neptunium(V) Diamide Complex†

  1. Guoxin Tian Dr.1,
  2. Jide Xu Dr.2,
  3. Linfeng Rao Dr.1

Article first published online: 30 AUG 2005

DOI: 10.1002/anie.200501281

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 44, Issue 38, pages 6200–6203, September 26, 2005

Additional Information

How to Cite

Tian, G., Xu, J. and Rao, L. (2005), Optical Absorption and Structure of a Highly Symmetrical Neptunium(V) Diamide Complex. Angew. Chem. Int. Ed., 44: 6200–6203. doi: 10.1002/anie.200501281

Author Information

  1. 1

    Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA, Fax: (+1) 510-486-5596

  2. 2

    Department of Chemistry, University of California, Berkeley, California 94720, USA

  1. †

    This work was supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy (DOE) under Contract No. DE-AC02-05CH 11231 at the Lawrence Berkeley National Laboratory (LBNL). The Advanced Light Source (ALS) is operated by LBNL for the DOE. The authors thank Drs. D. Shuh and A. Gordon for developing the procedures for handling small crystals of actinides at Beamline 11.3.1 of the ALS, and Dr. Allen Oliver for collecting the X-ray diffraction data at the ALS.

Publication History

  1. Issue published online: 20 SEP 2005
  2. Article first published online: 30 AUG 2005
  3. Manuscript Revised: 24 JUN 2005
  4. Manuscript Received: 12 APR 2005

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Keywords:

  • absorption;
  • amides;
  • coordination modes;
  • neptunium;
  • X-ray diffraction
Thumbnail image of graphical abstract

A reflection on neptunium absorption: The absorption spectrum of NpV around 980 nm originates from a 5f→5f electric-dipole transition, which is allowed if the NpV ion lies in a coordination environment that lacks a center of inversion, such as in [NpO2(H2O)5]+. However, the transition is completely forbidden by Laporte's rule in the highly symmetrical NpV diamide complex [NpO2(L)2]+ (see structure; Np green, O red, N blue, C gray).

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