Electronic Structure Similarities in PbxSby鈥?/sup> and SnxBiy鈥?/sup> Clusters
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- 作者：Joshua J. Melko ; Ute Werner ; Roland Mitric虂 ; Vlasta Bonac虒ic虂-Koutecky虂 ; A. W. Castleman ; Jr.
- 刊名：Journal of Physical Chemistry A
- 出版年：2011
- 出版时间：September 22, 2011
- 年：2011
- 卷：115
- 期：37
- 页码：10276-10280
- 全文大小：813K
- 年卷期：v.115,no.37(September 22, 2011)
- ISSN：1520-5215
文摘
The geometric and electronic structure of PbxSby鈥?/sup> and SnxBiy鈥?/sup> clusters are investigated by photoelectron spectroscopy and theoretical methods. It is found that PbSb2鈥?/sup> and SnBi2鈥?/sup> have similar spectroscopic patterns, reflecting correlations in electronic nature that are a result of their isoelectronic character and common geometries. Analogous findings are presented for Pb2Sb2鈥?/sup> and Sn2Bi2鈥?/sup>. Further, we investigate the effect of altering the total valence count, and separately the geometry, on spectroscopic patterns. We conclude that these heavy p-block elements are interchangeable and that the electronic structure correspondence can be preserved regardless of elemental composition. This represents an extension of the traditional concepts of periodicity, where elements of similar valence configuration are grouped into columns. Instead, elements from different columns may be combined to yield similarities in chemistry, given the overall valence count is preserved.