Publication Date:
2004-04-03
Description:
Al13- is a cluster known for the pronounced stability that arises from coincident closures of its geometric and electronic shells. We present experimental evidence for a very stable cluster corresponding to Al13I-. Ab initio calculations show that the cluster features a structurally unperturbed Al13- core and a region of high charge density on the aluminum vertex opposite from the iodine atom. This ionically bound magic cluster can be understood by considering that Al13 has an electronic structure reminiscent of a halogen atom. Comparisons to polyhalides provide a sound explanation for our chemical observations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bergeron, Denis E -- Castleman, A Welford Jr -- Morisato, Tsuguo -- Khanna, Shiv N -- New York, N.Y. -- Science. 2004 Apr 2;304(5667):84-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Chemistry and Physics, Pennsylvania State University, University Park, PA 16802, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15066775" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
