Convex and Concave Encapsulation of Multiple Potassium Ions by Sumanenyl Anions
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- 作者：Sarah N. Spisak ; Zheng Wei ; Natalie J. O鈥橬eil ; Andrey Yu. Rogachev ; Toru Amaya ; Toshikazu Hirao ; Marina A. Petrukhina
- 刊名：Journal of the American Chemical Society
- 出版年：2015
- 出版时间：August 12, 2015
- 年：2015
- 卷：137
- 期：31
- 页码：9768-9771
- 全文大小：357K
- ISSN：1520-5126
文摘
Herein we report the novel complex consisting of di- and tripotassiumsumanenide, K7(C21H102鈥?/sup>)2(C21H93鈥?/sup>)路8THF (2), which was prepared by the treatment of sumanene (C21H12, 1) with excess K metal in THF. The X-ray structural determination revealed unique self-assembly of six potassium ions sandwiched by convex faces of two sumanenyl trianions in addition to novel interaction involving all 15 carbon atoms of three Cp-like moieties on the concave surface of the sumanenyl bowls outside the sandwich. The unique structural features of 2 are rationalized with the help of DFT calculations.