A Distorted Tetrahedral Metal Oxide Cluster inside an Icosahedral Carbon Cage. Synthesis, Isolation, and Structural Characterization of Sc4(μ3-O)2@I
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- 作者：Steven Stevenson ; Mary A. Mackey ; Melissa A. Stuart ; J. Paige Phillips ; Michael L. Easterling ; Christopher J. Chancellor ; Marilyn M. Olmstead ; Alan L. Balch
- 刊名：Journal of the American Chemical Society
- 出版年：2008
- 出版时间：September 10, 2008
- 年：2008
- 卷：130
- 期：36
- 页码：11844-11845
- 全文大小：130K
- 年卷期：v.130,no.36(September 10, 2008)
- ISSN：1520-5126
文摘
The remarkably large cluster Sc4(μ3-O)2 has been obtained trapped inside an Ih-C80 cage by conducting the vaporization of graphite rods doped with copper(II) nitrate and scandium(III) oxide in an electric arc under a low pressure helium atmosphere with an added flow of air. The product has been isolated by chromatography and identified by high-resolution mass spectrometry. The structure of Sc4(μ3-O)2@Ih-C80 has been determined by X-ray crystallography on a crystal of Sc4(μ3-O)2@Ih-C80·NiII(OEP)·2(C6H6). The Sc4(μ3-O)2 unit consists of a distorted tetrahedron of scandium atoms with oxygen atoms bridging two of its faces. The Sc−Sc distances range from 2.946(7) to 3.379(7) Å.