Volume 56, Issue 34 pp. 10161-10164
Communication

Synthesis of an Aluminum Hydroxide Octamer through a Simple Dissolution Method

Dr. Cory K. Perkins

Dr. Cory K. Perkins

Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003 USA

Search for more papers by this author
Eric S. Eitrheim

Eric S. Eitrheim

Department of Chemistry, University of Iowa, Iowa City, IA, 52242 USA

Search for more papers by this author
Brantly L. Fulton

Brantly L. Fulton

Department of Chemistry & Biochemistry, University of Oregon, Eugene, OR, 97403-1253 USA

Search for more papers by this author
Lauren B. Fullmer

Lauren B. Fullmer

Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003 USA

Search for more papers by this author
Christopher A. Colla

Christopher A. Colla

Department of Chemistry, University of California, Davis, CA, 95616 USA

Search for more papers by this author
Deok-Hie Park

Deok-Hie Park

Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003 USA

Search for more papers by this author
Prof. Anna F. Oliveri

Prof. Anna F. Oliveri

Department of Chemistry, Southern Oregon University, Ashland, OR, 97520 USA

Search for more papers by this author
Prof. James E. Hutchison

Prof. James E. Hutchison

Department of Chemistry & Biochemistry, University of Oregon, Eugene, OR, 97403-1253 USA

Search for more papers by this author
Prof. May Nyman

Prof. May Nyman

Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003 USA

Search for more papers by this author
Prof. William H. Casey

Prof. William H. Casey

Department of Chemistry, University of California, Davis, CA, 95616 USA

Search for more papers by this author
Prof. Tori Z. Forbes

Prof. Tori Z. Forbes

Department of Chemistry, University of Iowa, Iowa City, IA, 52242 USA

Search for more papers by this author
Prof. Darren W. Johnson

Corresponding Author

Prof. Darren W. Johnson

Department of Chemistry & Biochemistry, University of Oregon, Eugene, OR, 97403-1253 USA

Search for more papers by this author
Prof. Douglas A. Keszler

Corresponding Author

Prof. Douglas A. Keszler

Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003 USA

Search for more papers by this author
First published: 16 May 2017
Citations: 28

Graphical Abstract

Super 8: The octameric aluminum hydroxide cluster [Al8(OH)14(H2O)18]10+ is readily synthesized and isolated through the dissolution of aluminum hydroxide in sulfuric acid and subsequent crystal growth. Structural studies reveal the existence of the cluster in solution. Al red, O green, H blue (Image by Dr. Anna Oliveri).

Abstract

Multimeric oxo-hydroxo Al clusters function as models for common mineral structures and reactions. Cluster research, however, is often slowed by a lack of methods to prepare clusters in pure form and in large amounts. Herein, we report a facile synthesis of the little known cluster Al8(OH)14(H2O)18(SO4)5 (Al8) through a simple dissolution method. We confirm its structure by single-crystal X-ray diffraction and show by 27Al NMR spectroscopy, electrospray-ionization mass spectrometry, and small- and wide-angle X-ray scattering that it also exists in solution. We speculate that Al8 may form in natural water systems through the dissolution of aluminum-containing minerals in acidic sulfate solutions, such as those that could result from acid rain or mine drainage. Additionally, the dissolution method produces a discrete Al cluster on a scale suitable for studies and applications in materials science.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.