Campus Units

Ames Laboratory, Chemistry

Document Type

Article

Conference

2012 MRS Fall Meeting

Publication Version

Published Version

Publication Date

2013

Journal or Book Title

MRS Proceedings

Volume

1517

First Page

1

Last Page

12

DOI

10.1557/opl.2013.45

Conference Title

2012 MRS Fall Meeting

Conference Date

November 25-30, 2012

City

Boston, MA

Abstract

Recent exploratory syntheses of polar intermetallic compounds containing gold have established gold’s tremendous ability to stabilize new phases with diverse and fascinating structural motifs. In particular, Au-rich polar intermetallics contain Au atoms condensed into tetrahedra and diamond-like three-dimensional frameworks. In Au-poor intermetallics, on the other hand, Au atoms tend to segregate, which maximizes the number of Au-heteroatom contacts. Lastly, among polar intermetallics with intermediate Au content, complex networks of icosahedra have emerged, including discovery of the first sodium-containing, Bergman-type, icosahedral quasicrystal. Gold’s behavior in this metal-rich chemistry arises from its various atomic properties, which influence the chemical bonding features of gold with its environment in intermetallic compounds. Thus, the structural versatility of gold and the accessibility of various Au fragments within intermetallics are opening new insights toward elucidating relationships among metal-rich clusters and bulk solids.

Comments

This conference proceeding is from MRS Proceedings 1517 (2013): doi:10.1557/opl.2013.45. Posted with permission.

Copyright Owner

Materials Research Society

Language

en

File Format

application/pdf

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Article Location

 
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