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Direct Observation of Contact Ion-Pair Formation in Aqueous Solution†

  1. Mark R. Antonio Dr.1,
  2. May Nyman Dr.2,
  3. Travis M. Anderson Dr.2

Article first published online: 24 APR 2009

DOI: 10.1002/ange.200805323

Issue

Angewandte Chemie

Angewandte Chemie

Volume 121, Issue 33, pages 6252–6256, August 3, 2009

Additional Information

How to Cite

Antonio, M., Nyman, M. and Anderson, T. (2009), Direct Observation of Contact Ion-Pair Formation in Aqueous Solution. Angewandte Chemie, 121: 6252–6256. doi: 10.1002/ange.200805323

Author Information

  1. 1

    Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439-4831 (USA) http://www.cse.anl.gov/Staff/Nuclear_and_Environmental_Processes/MAntonio.shtml

  2. 2

    Geochemistry Department, Sandia National Laboratories, Albuquerque, NM 87185-0754 (USA)

  1. †

    We thank Dr. Soenke Seifert (XSD-APS-ANL) for assistance with the SAXS measurements and Dr. Nate Ockwig for assistance in data collection. This work is supported by the U. S. Department of Energy, Office of Basic Energy Science, Division of Chemical Sciences, Biosciences and Geosciences, under contract no. DE-AC02-06CH11357, for the part performed at Argonne National Laboratory. We are grateful to Mona Aragon (SNL) for assistance with graphics. Sandia authors thank the LDRD program for financial support. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the United States Department of Energy under Contract No. DE-AC04-94AL85000.

Publication History

  1. Issue published online: 29 JUL 2009
  2. Article first published online: 24 APR 2009
  3. Manuscript Received: 31 OCT 2008

Funded by

  • U. S. Department of Energy, Office of Basic Energy Science, Division of Chemical Sciences, Biosciences and Geosciences. Grant Number: DE-AC02-06CH11357
  • LDRD
  • United States Department of Energy. Grant Number: DE-AC04-94AL85000

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Keywords:

  • Alkalimetalle;
  • Clusterverbindungen;
  • Ionenpaare;
  • Kleinwinkelröntgenstreuung;
  • Polyoxometallate

Graphical Abstract

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Nackt oder neutralisiert? SAXS-Messungen (SAXS: Kleinwinkelröntgenstreuung) liefern direkte Informationen über die Bildung der Kontaktionenpaare zwischen dem [Nb6O19]8−-Polyoxometallat und den acht Ladungen ausgleichenden Caesium-Kationen in wässriger Lösung. Die Gyrationsradien (Rg) für Cs8[Nb6O19] und [Nb6O19]8− sind gezeigt.

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