Moreno Diego, Pan Sudip, Zeonjuk Lei Liu, Islas Rafael, Osorio Edison, Martínez-Guajardo Gerardo, Chattaraj Pratim K, Heine Thomas, Merino Gabriel
Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados Unidad Mérida, km 6 Antigua carretera a Progreso. Apdo. Postal 73, Cordemex, 97310, Mérida, Yuc., México.
Chem Commun (Camb). 2014 Aug 4;50(60):8140-3. doi: 10.1039/c4cc02225d.
A quasi-planar member of the so-called 'Wankel motor' family, B18(2-), is found. This boron cluster is an electronically stable dianion and a concentric doubly σ- and π-aromatic system. The inner B6 unit in B18(2-) undergoes quasi-free rotation inside the perimeter of the B12 ring. The absence of any localized σ-bond between the inner ring and the peripheral boron atoms makes the system fluxional.
发现了所谓“汪克尔发动机”家族的一个准平面成员B18(2-)。这个硼簇是一个电子稳定的二价阴离子，也是一个同心的双σ-和π-芳香体系。B18(2-)中的内B6单元在B12环的周边内进行准自由旋转。内环与外围硼原子之间不存在任何局部σ键，这使得该体系具有流动性。
